SN74ALVCH16501
18 BIT UNIVERSAL BUS TRANSCEIVER
WITH 3 STATE OUTPUTS
SCES024I - JULY 1995 - REVISED SEPTEMBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D
Member of the Texas Instruments
Widebus
Family
D
UBT
Transceiver Combines D-Type
Latches and D-Type Flip-Flops for
Operation in Transparent, Latched, or
Clocked Modes
D
Operates From 1.65 V to 3.6 V
D
Max t
pd
of 3.9 ns at 3.3 V
D
24-mA Output Drive at 3.3 V
D
Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
D
Latch-Up Performance Exceeds 250 mA Per
JESD 17
D
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
description/ordering information
This 18-bit universal bus transceiver is designed
for 1.65-V to 3.6-V V
CC
operation.
Data flow in each direction is controlled by
output-enable (OEAB and OEBA), latch-enable
(LEAB and LEBA), and clock (CLKAB and
CLKBA) inputs. For A-to-B data flow, the device
operates in the transparent mode when LEAB is
high. When LEAB is low, the A data is latched if
CLKAB is held at a high or low logic level. If LEAB
is low, the A data is stored in the latch/flip-flop on
the low-to-high transition of CLKAB. When OEAB
is high, the outputs are active. When OEAB is low,
the outputs are in the high-impedance state.
Data flow for B to A is similar to that of A to B, but uses OEBA, LEBA, and CLKBA. The output enables are
complementary (OEAB is active high and OEBA is active low).
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SSOP - DL
Tube
SN74ALVCH16501DL
ALVCH16501
SSOP - DL
Tape and reel
SN74ALVCH16501DLR
ALVCH16501
-40
C to 85
C
TSSOP - DGG
Tape and reel
SN74ALVCH16501DGGR
ALVCH16501
-40 C to 85 C
VFBGA - GQL
Tape and reel
SN74ALVCH16501KR
VH501
VFBGA - ZQL (Pb-free)
Tape and reel
74ALVCH16501ZQLR
VH501
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
2003, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
UBT and Widebus are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
DGG OR DL PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
OEAB
LEAB
A1
GND
A2
A3
V
CC
A4
A5
A6
GND
A7
A8
A9
A10
A11
A12
GND
A13
A14
A15
V
CC
A16
A17
GND
A18
OEBA
LEBA
GND
CLKAB
B1
GND
B2
B3
V
CC
B4
B5
B6
GND
B7
B8
B9
B10
B11
B12
GND
B13
B14
B15
V
CC
B16
B17
GND
B18
CLKBA
GND
SN74ALVCH16501
18 BIT UNIVERSAL BUS TRANSCEIVER
WITH 3 STATE OUTPUTS
SCES024I - JULY 1995 - REVISED SEPTEMBER 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
To ensure the high-impedance state during power up or power down, OEBA should be tied to V
CC
through a
pullup resistor, and OEAB should be tied to GND through a pulldown resistor; the minimum value of the resistor
is determined by the current-sinking capability of the driver.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors
with the bus-hold circuitry is not recommended.
terminal assignments
1
2
3
4
5
6
A
A1
LEAB
OEAB
GND
CLKAB
B1
B
A3
A2
GND
GND
B2
B3
C
A5
A4
VCC
VCC
B4
B5
D
A7
A6
GND
GND
B6
B7
E
A9
A8
B8
B9
F
A10
A11
B11
B10
G
A12
A13
GND
GND
B13
B12
H
A14
A15
VCC
VCC
B15
B14
J
A16
A17
GND
GND
B17
B16
K
A18
OEBA
LEBA
GND
CLKBA
B18
FUNCTION TABLE
INPUTS
OUTPUT
OEAB
LEAB
CLKAB
A
OUTPUT
B
L
X
X
X
Z
H
H
X
L
L
H
H
X
H
H
H
L
L
L
H
L
H
H
H
L
H
X
B0
H
L
L
X
B0
A-to-B data flow is shown; B-to-A flow is similar, but
uses OEBA, LEBA, and CLKBA.
Output level before the indicated steady-state input
conditions were established, provided that CLKAB
was high before LEAB went low
Output level before the indicated steady-state input
conditions were established
GQL OR ZQL PACKAGE
(TOP VIEW)
A
B
C
D
E
F
G
H
J
K
1
2
3
4
5
6
SN74ALVCH16501
18 BIT UNIVERSAL BUS TRANSCEIVER
WITH 3 STATE OUTPUTS
SCES024I - JULY 1995 - REVISED SEPTEMBER 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagram (positive logic)
1D
C1
CLK
1D
C1
CLK
B1
OEAB
CLKAB
LEAB
LEBA
CLKBA
OEBA
A1
1
55
2
28
30
27
3
54
To 17 Other Channels
Pin numbers shown are for the DGG and DL packages.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
-0.5 V to 4.6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
: Except I/O ports (see Note 1)
-0.5 V to 4.6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O ports (see Notes 1 and 2)
-0.5 V to V
CC
+ 0.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, V
O
(see Notes 1 and 2)
-0.5 V to V
CC
+ 0.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0)
-50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I
OK
(V
O
< 0)
-50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, I
O
50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through each V
CC
or GND
100 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
JA
(see Note 3): DGG package
64
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DL package
56
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GQL/ZQL package
42
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
-65
C to 150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. This value is limited to 4.6 V maximum.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
SN74ALVCH16501
18 BIT UNIVERSAL BUS TRANSCEIVER
WITH 3 STATE OUTPUTS
SCES024I - JULY 1995 - REVISED SEPTEMBER 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 4)
MIN
MAX
UNIT
VCC
Supply voltage
1.65
3.6
V
VCC = 1.65 V to 1.95 V
0.65
VCC
VIH
High-level input voltage
VCC = 2.3 V to 2.7 V
1.7
V
VIH
High-level input voltage
VCC = 2.7 V to 3.6 V
2
V
VCC = 1.65 V to 1.95 V
0.35
VCC
VIL
Low-level input voltage
VCC = 2.3 V to 2.7 V
0.7
V
VIL
Low-level input voltage
VCC = 2.7 V to 3.6 V
0.8
V
VI
Input voltage
0
VCC
V
VO
Output voltage
0
VCC
V
VCC = 1.65 V
-4
IOH
High-level output current
VCC = 2.3 V
-12
mA
IOH
High-level output current
VCC = 2.7 V
-12
mA
VCC = 3 V
-24
VCC = 1.65 V
4
IOL
Low-level output current
VCC = 2.3 V
12
mA
IOL
Low-level output current
VCC = 2.7 V
12
mA
VCC = 3 V
24
t/
v
Input transition rise or fall rate
10
ns/V
TA
Operating free-air temperature
-40
85
C
NOTE 4: All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
SN74ALVCH16501
18 BIT UNIVERSAL BUS TRANSCEIVER
WITH 3 STATE OUTPUTS
SCES024I - JULY 1995 - REVISED SEPTEMBER 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
IOH = -100
A
1.65 V to 3.6 V
VCC-0.2
IOH = -4 mA
1.65 V
1.2
IOH = -6 mA
2.3 V
2
VOH
2.3 V
1.7
V
VOH
IOH = -12 mA
2.7 V
2.2
V
IOH = -12 mA
3 V
2.4
IOH = -24 mA
3 V
2
IOL = 100
A
1.65 V to 3.6 V
0.2
IOL = 4 mA
1.65 V
0.45
VOL
IOL = 6 mA
2.3 V
0.4
V
VOL
IOL = 12 mA
2.3 V
0.7
V
IOL = 12 mA
2.7 V
0.4
IOL = 24 mA
3 V
0.55
II
VI = VCC or GND
3.6 V
5
A
VI = 0.58 V
1.65 V
25
VI = 1.07 V
1.65 V
-25
VI = 0.7 V
2.3 V
45
II(hold)
VI = 1.7 V
2.3 V
-45
A
II(hold)
VI = 0.8 V
3 V
75
A
VI = 2 V
3 V
-75
VI = 0 to 3.6 V
3.6 V
500
IOZ
VO = VCC or GND
3.6 V
10
A
ICC
VI = VCC or GND,
IO = 0
3.6 V
40
A
ICC
One input at VCC - 0.6 V,
Other inputs at VCC or GND
3 V to 3.6 V
750
A
Ci
Control inputs
VI = VCC or GND
3.3 V
4
pF
Cio
A or B ports
VO = VCC or GND
3.3 V
8
pF
All typical values are at VCC = 3.3 V, TA = 25
C.
This is the bus-hold maximum dynamic current. It is the minimum overdrive current required to switch the input from one state to another.
For I/O ports, the parameter IOZ includes the input leakage current.
timing requirements over recommended operating free-air temperature range (unless otherwise
noted) (see Figure 1)
VCC = 2.5 V
0.2 V
VCC = 2.7 V
VCC = 3.3 V
0.3 V
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
fclock
Clock frequency
150
150
150
MHz
tw
Pulse duration
LE high
3.3
3.3
3.3
ns
tw
Pulse duration
CLK high or low
3.3
3.3
3.3
ns
Data before CLK
2.2
2.1
1.7
tsu
Setup time
Data before LE
CLK high
1.9
1.6
1.5
ns
tsu
Setup time
Data before LE
CLK low
1.3
1.1
1
ns
th
Hold time
Data after CLK
0.6
0.6
0.7
ns
th
Hold time
Data after LE
CLK high or low
1.4
1.7
1.4
ns
SN74ALVCH16501
18 BIT UNIVERSAL BUS TRANSCEIVER
WITH 3 STATE OUTPUTS
SCES024I - JULY 1995 - REVISED SEPTEMBER 2003
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range (unless
otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 2.5 V
0.2 V
VCC = 2.7 V
VCC = 3.3 V
0.3 V
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
fmax
150
150
150
MHz
A or B
B or A
1
4.8
4.5
1
3.9
tpd
LE
A or B
1.1
5.7
5.3
1.3
4.6
ns
tpd
CLK
A or B
1.2
6.1
5.6
1.4
4.9
ns
ten
OEAB
B
1
5.8
5.3
1
4.6
ns
tdis
OEAB
B
1.5
6.2
5.7
1.4
5
ns
ten
OEBA
A
1.3
6.3
6
1.1
5
ns
tdis
OEBA
A
1.3
5.3
4.6
1.3
4.2
ns
operating characteristics, T
A
= 25
C
PARAMETER
TEST CONDITIONS
VCC = 2.5 V VCC = 3.3 V
UNIT
PARAMETER
TEST CONDITIONS
TYP
TYP
UNIT
Cpd
Power dissipation capacitance
Outputs enabled
CL = 50 pF,
f = 10 MHz
44
54
pF
Cpd
Power dissipation capacitance
Outputs disabled
CL = 50 pF,
f = 10 MHz
6
6
pF
SN74ALVCH16501
18 BIT UNIVERSAL BUS TRANSCEIVER
WITH 3 STATE OUTPUTS
SCES024I - JULY 1995 - REVISED SEPTEMBER 2003
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
VM
VM
VM
VM
VM
VM
VM
VM
VOH
VOL
th
tsu
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT
S1
Open
GND
RL
RL
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at VLOAD
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
tPZL
tPZH
tPLZ
tPHZ
0 V
VOL + V
VOH - V
0 V
VI
0 V
0 V
tw
VI
VI
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
Timing
Input
Data
Input
Input
tpd
tPLZ/tPZL
tPHZ/tPZH
Open
VLOAD
GND
TEST
S1
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR
10 MHz, ZO = 50
.
D. The outputs are measured one at a time with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
H. All parameters and waveforms are not applicable to all devices.
0 V
VI
VM
tPHL
VM
VM
VI
0 V
VOH
VOL
Input
Output
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VM
VM
tPLH
VLOAD
VLOAD/2
1.8 V
2.5 V
0.2 V
2.7 V
3 V
0.3 V
1 k
500
500
500
VCC
RL
2
VCC
2
VCC
6 V
6 V
VLOAD
CL
30 pF
30 pF
50 pF
50 pF
0.15 V
0.15 V
0.3 V
0.3 V
V
VCC
VCC
2.7 V
2.7 V
VI
VCC/2
VCC/2
1.5 V
1.5 V
VM
tr/tf
2 ns
2 ns
2.5 ns
2.5 ns
INPUT
Figure 1. Load Circuit and Voltage Waveforms
MECHANICAL DATA
MSSO001C JANUARY 1995 REVISED DECEMBER 2001
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DL (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
4040048 / E 12/01
48 PINS SHOWN
56
0.730
(18,54)
0.720
(18,29)
48
28
0.370
(9,40)
(9,65)
0.380
Gage Plane
DIM
0.420 (10,67)
0.395 (10,03)
A MIN
A MAX
0.010 (0,25)
PINS **
0.630
(16,00)
(15,75)
0.620
0.010 (0,25)
Seating Plane
0.020 (0,51)
0.040 (1,02)
25
24
0.008 (0,203)
0.0135 (0,343)
48
1
0.008 (0,20) MIN
A
0.110 (2,79) MAX
0.299 (7,59)
0.291 (7,39)
0.004 (0,10)
M
0.005 (0,13)
0.025 (0,635)
0
8
0.005 (0,13)
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0.006 (0,15).
D. Falls within JEDEC MO-118
MECHANICAL DATA
MTSS003D JANUARY 1995 REVISED JANUARY 1998
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DGG (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
4040078 / F 12/97
48 PINS SHOWN
0,25
0,15 NOM
Gage Plane
6,00
6,20
8,30
7,90
0,75
0,50
Seating Plane
25
0,27
0,17
24
A
48
1
1,20 MAX
M
0,08
0,10
0,50
0
8
56
14,10
13,90
48
DIM
A MAX
A MIN
PINS **
12,40
12,60
64
17,10
16,90
0,15
0,05
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold protrusion not to exceed 0,15.
D. Falls within JEDEC MO-153
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2003, Texas Instruments Incorporated
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