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74ABTH16952DGG Folha de dados(PDF) 2 Page - NXP Semiconductors

Nome de Peças 74ABTH16952DGG
Descrição Electrónicos  16-bit registered transceiver 3-State
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Fabricante Electrônico  PHILIPS [NXP Semiconductors]
Página de início  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

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Philips Semiconductors
Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
2
1998 Feb 25
853-1814 19018
FEATURES
Two 8-bit registered transceivers
Live insertion/extraction permitted
Power-up 3-State
74ABTH16952 incorporates bus-hold data inputs which eliminate
the need for external pull-up resistors to hold unused inputs
Power-up reset
Multiple V
CC and GND pins minimize switching noise
Independent registers for A and B buses
Output capability: +64mA/–32mA
Latch-up protection exceeds 500mA per Jedec Std 17
ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
DESCRIPTION
The 74ABT16952 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
The 74ABT16952 is a dual octal registered transceiver. Two 8-bit
registers store data flowing in both directions between two
bidirectional buses. Data applied to the inputs is entered and stored
on the rising edge of the Clock (nCPXX) provided that the Clock
Enable (nCEXX) is Low. The data is then present at the 3-State
output buffers, but is only accessible when the Output Enable
(nOEXX) is Low. Data flow from A inputs to B outputs is the same as
for B inputs to A outputs.
Two options are available, 74ABT16952 which does not have the
bus-hold feature and 74ABTH16952 which incorporates the
bus-hold feature.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
Tamb = 25°C; GND = 0V
TYPICAL
UNIT
tPLH
tPHL
Propagation delay
nCPBA to nAx or
nCPAB to nBx
CL = 50pF; VCC = 5V
2.8
2.3
ns
CIN
Input capacitance
VI = 0V or VCC
4
pF
CI/O
I/O capacitance
VO = 0V or VCC; 3-State
7
pF
ICCZ
Quiescent supply current
Outputs disabled; VCC = 5.5V
500
µA
ICCL
Quiescent su
ly current
Outputs LOW; VCC = 5.5V
8
mA
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
56-Pin Plastic SSOP Type III
–40
°C to +85°C
74ABT16952 DL
BT16952 DL
SOT371-1
56-Pin Plastic TSSOP Type II
–40
°C to +85°C
74ABT16952 DGG
BT16952 DGG
SOT364-1
56-Pin Plastic SSOP Type III
–40
°C to +85°C
74ABTH16952 DL
BH16952 DL
SOT371-1
56-Pin Plastic TSSOP Type II
–40
°C to +85°C
74ABTH16952 DGG
BH16952 DGG
SOT364-1
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
2, 55
18, 22
1CPAB / 1CPBA
2CPAB / 2CPBA
Clock input A to B / Clock input B to A
3, 54,
26, 31
1CEAB / 1CEBA
2CEAB / 2CEBA
Clock enable input A to B / Clock enable input B to A
52, 51, 49, 48, 47, 45, 44, 43
42, 41, 40, 38, 37, 36, 34, 33
1A0 – 1A7
2A0 – 2A7
Data inputs/outputs (A side)
1, 56
8, 29
1B0 – 1B7
2B0 – 2B7
Data inputs/outputs (B side)
4, 11, 18, 25, 32, 39, 45, 53
1OEAB / 1OEBA
2OEAB / 2OEBA
Output enable inputs
4, 17, 30, 43
GND
Ground (0V)
7, 22, 35, 50
VCC
Positive supply voltage


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