Philips Semiconductors
16-bit buffer/line driver (3-State)
Product specification
74ABT16541
74ABTH16541
FEATURES
• Power-up 3-State
• Multiple VCC and GND pins minimize switching noise
• Provides ideal interface and increases fan-out of MOS
Microprocessors
• 3-State buffers sink 64mA and source 32mA
• 74ABTH16541 incorporates bus-hold data inputs which eliminate
the need for external pull-up resistors to hold unused inputs
• Latch-up protection exceeds 500mA per Jedec Std 17
• ESD protection exceeds 2000 V per MIL STD 883 Method 3015
and 200 V per Machine Model
• Two 8-bit bus interfaces
• Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
DESCRIPTION
The 74ABT16541 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
The 74ABT16541 has two octal buffers that are ideal for driving bus
lines. The outputs are all capable of sinking 64mA and sourcing
32mA.
Two options are available, 74ABT16541 which does not have the
bus-hold feature and 74ABTH16541 which incorporates the
bus-hold feature.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
tPLH
tPHL
CIN
COUT
ICCZ
ICCL
Propagation delay
nAx to nYx
Input capacitance
Output capacitance
Quiescent supply current
CONDITIONS
Tamb = 25°C; GND = 0V
CL = 50pF; VCC = 5V
VI = 0V or VCC
VO = 0V or VCC; 3-State
Outputs disabled; VCC =5.5V
Outputs LOW; VCC = 5.5V
TYPICAL
2.0
1.5
4
6
500
8
UNIT
ns
pF
pF
µA
mA
ORDERING INFORMATION
PACKAGES
48-Pin Plastic SSOP Type III
48-Pin Plastic TSSOP Type II
48-Pin Plastic SSOP Type III
48-Pin Plastic TSSOP Type II
TEMPERATURE RANGE OUTSIDE NORTH AMERICA
–40°C to +85°C
74ABT16541 DL
–40°C to +85°C
74ABT16541 DGG
–40°C to +85°C
74ABTH16541 DL
–40°C to +85°C
74ABTH16541 DGG
NORTH AMERICA
BT16541 DL
BT16541 DGG
BH16541 DL
BH16541 DGG
DWG NUMBER
SOT370-1
SOT362-1
SOT370-1
SOT362-1
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
47, 46, 44, 43,
41, 40, 38, 37,
36, 35, 33, 32,
30, 29, 27, 26
1A0 - 1A7
2A0 - 2A7
Data inputs
2, 3, 5, 6,
8, 9, 11, 12,
13, 14, 16, 17
19, 20, 22, 23
1Y0 - 1Y7,
2Y0 - 2Y7
Data outputs
1, 48
24, 25
1OE0, 1OE1,
2OE0, 2OE1
Output enables
4, 10, 15, 21
28, 34, 39, 45
GND
Ground (0V)
7, 18, 31, 42
VCC Positive supply voltage
1998 Feb 25
2 853-1807 19018
