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74ACT8244 Datenblatt(PDF) 1 Page - STMicroelectronics

Teilenummer 74ACT8244
Bauteilbeschribung  RELAY DRIVER IC
PDF  7 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74ACT8244 Datenblatt(HTML) 1 Page - STMicroelectronics

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June 2001
s
OPERATES 4 LATCHES RELAIS, 1 SINGLE
SIDE STABLE RELAY AND 1 LED
s
VERY LOW POWER CONSUMPTION
s
TTL COMPATIBLE INPUT THRESHOLDS
s
IMPROVED LATCH-UP IMMUNITY UP TO
300mA
s
OPERATING VOLTAGE RANGE:
VCC(OPR) = 4.25V to 5.25V
s
AVAILABLE IN TSSOP-20 PACKAGE
DESCRIPTION
The device is a relais driver for line card
application. It is able to operate four latching
relais, one single side stable relay and one LED
connected either to GND or VCC. All the outputs
can be set to LOW with the RST input as shown in
the true table. All inputs and outputs are equipped
with protection circuits against static discharge,
giving them 2KV ESD immunity and transient
excess voltage.
PIN DESCRIPTION
PIN No
SYMBOL
NAME AND FUNCTION
1
RST
Master Reset
2
IN1A
Input of 1st latched relay drv
3
IN1B
Input of 1st latched relay drv
4
IN2A
Input of 2nd latched relay drv
5
IN2B
Input of 2nd latched relay drv
6
IN3A
Input of 3rd latched relay drv
7
IN3B
Input of 3rd latched relay drv
8
IN4
Input of 1st relay driver
9
IN5
Input LED driver
10
GND
Ground (0V)
11
NC
Not Connected
12
OUT5
Output LED driver
13
OUT4
Output of 1st relay driver
14
OU3B
Output of 3rd latched relay drv
15
OU3A
Output of 3rd latched relay drv
16
OU2B
Output of 2nd latched relay drv
17
OU2A
Output of 2nd latched relay drv
18
OU1B
Output of 1st latched relay drv
19
OU1A
Output of 1st latched relay drv
20
VCC
Positive Supply Voltage
74ACT8244
RELAY DRIVER IC
ORDER CODES
PACKAGE
TUBE
T & R
TSSOP
74ACT8244TTR
TSSOP
PIN CONNECTION


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