74HCT640DB,112 NXP Semiconductors, 74HCT640DB,112 Datasheet - Page 3
74HCT640DB,112
Manufacturer Part Number
74HCT640DB,112
Description
IC TRANSCEIVER 3ST 8BIT 20SSOP
Manufacturer
NXP Semiconductors
Series
74HCTr
Datasheets
1.74HCT4046ADB112.pdf
(19 pages)
2.74HCT4046ADB112.pdf
(23 pages)
3.74HCT640D653.pdf
(6 pages)
Specifications of 74HCT640DB,112
Logic Type
Transceiver, Inverting
Package / Case
20-SSOP
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
Surface Mount
Logic Family
74HCT
Number Of Channels Per Chip
8
Input Level
TTL
Output Level
TTL
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
Inverting
Input Bias Current (max)
8 uA
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
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
568-2896-5
935190190112
935190190112
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