74HCT640N,652 NXP Semiconductors, 74HCT640N,652 Datasheet - Page 3

• Manufacturer Part Number: 74HCT640N,652
• Description: IC TRANSCEIVER 3ST 8BIT 20DIP
• Manufacturer: NXP Semiconductors
• Series: 74HCTr

Specifications of 74HCT640N,652

• Logic Type: Transceiver, Inverting
• Package / Case: 20-DIP (0.300", 7.62mm)
• Number Of Elements: 1
• Number Of Bits Per Element: 8
• Current - Output High, Low: 6mA, 6mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Logic Family: 74HCT
• Number Of Channels Per Chip: 8
• Input Level: TTL
• Output Level: CMOS
• Output Type: 3-State
• High Level Output Current: - 6 mA
• Low Level Output Current: 6 mA
• Propagation Delay Time: 9 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 125 C
• Function: Bus Transceiver
• Input Bias Current (max): 8 uA
• Maximum Power Dissipation: 750 mW
• Minimum Operating Temperature: - 40 C
• Mounting Style: Through Hole
• Polarity: Inverting
• Number Of Circuits: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-1562-5; 74HCT640N; 933670960652

Philips Semiconductors
PIN DESCRIPTION
March 1988
PIN NO.
1
2, 3, 4, 5, 6, 7, 8, 9
10
18, 17, 16, 15, 14, 13, 12, 11 B
19
20
Octal bus transceiver; 3-state; inverting
Fig.1 Pin configuration.
Fig.3 IEC logic symbol.
SYMBOL NAME AND FUNCTION
DIR
A
GND
OE
V
0
0
CC
to A
to B
7
7
FUNCTION TABLE
Note
1. H = HIGH voltage level
OE
direction control
data inputs/outputs
ground (0 V)
data inputs/outputs
output enable input (active LOW)
positive supply voltage
H
L
L
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
inputs
Fig.2 Logic symbol.
DIR
H
X
L
A
A=B
inputs
Z
3
n
inputs/outputs
B
inputs
B=A
Z
n
Fig.4 Functional diagram.
74HC/HCT640
Product specification