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參數資料
| 型號： | 935199900118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線收發器 |
| 英文描述： | ABT SERIES, OCTAL 1-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | PLASTIC, SSOP-20 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 67K |
| 代理商： | 935199900118 |
Philips Semiconductors
Product specification
74ABT573A
Octal D-type transparent latch (3-State)
1
1995 Sep 06
853–1455 15703
FEATURES
74ABT573A is flow-through pinout version of 74ABT373
Inputs and outputs on opposite side of package allow easy
interface to microprocessors
3-State output buffers
Common output enable
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
Power-up 3-State
Power-up reset
DESCRIPTION
The 74ABT573A high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
The 74ABT573A device is an octal transparent latch coupled to
eight 3-State output buffers. The two sections of the device are
controlled independently by Enable (E) and Output Enable (OE)
control gates. The 74ABT573A is functionally identical to the
74ABT373 but has a flow-through pinout configuration to facilitate
PC board layout and allow easy interface with microprocessors.
The data on the D inputs are transferred to the latch outputs when
the Latch Enable (E) input is High. The latch remains transparent to
the data inputs while E is High, and stores the data that is present
one setup time before the High-to-Low enable transition.
The 3-State output buffers are designed to drive heavily loaded
3-State buses, MOS memories, or MOS microprocessors. The
active-Low Output Enable (OE) controls all eight 3-State buffers
independent of the latch operation.
When OE is Low, the latched or transparent data appears at the
outputs. When OE is High, the outputs are in the High-impedance
”OFF” state, which means they will neither drive nor load the bus.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
Tamb = 25°C; GND = 0V
TYPICAL
UNIT
tPLH
tPHL
Propagation delay
Dn to Qn
CL = 50pF; VCC = 5V
2.8
3.3
ns
CIN
Input capacitance
VI = 0V or VCC
3
pF
COUT
Output capacitance
Outputs disabled; VO = 0V or VCC
6
pF
ICCZ
Total supply current
Outputs disabled; VCC =5.5V
100
A
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
20-Pin Plastic DIP
–40
°C to +85°C
74ABT573A N
SOT146-1
20-Pin plastic SO
–40
°C to +85°C
74ABT573A D
SOT163-1
20-Pin Plastic SSOP Type II
–40
°C to +85°C
74ABT573A DB
SOT339-1
20-Pin Plastic TSSOP Type I
–40
°C to +85°C
74ABT573A PW
74ABT573APW DH
SOT360-1
PIN CONFIGURATION
20
19
18
17
16
15
14
13
12
10
11
9
8
7
6
5
4
3
2
1
VCC
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
E
OE
D0
D1
D2
D3
D4
D5
D6
D7
GND
SA00185
PIN DESCRIPTION
PIN
NUMBER
SYMBOL
FUNCTION
1
OE
Output enable input (active-Low)
2, 3, 4, 5,
6, 7, 8, 9
D0-D7
Data inputs
19, 18, 17,
16, 15, 14,
13, 12
Q0-Q7
Data outputs
11
E
Enable input (active-High)
10
GND
Ground (0V)
20
VCC
Positive supply voltage
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