M74HCT74B1R STMicroelectronics, M74HCT74B1R Datasheet - Page 2

• Manufacturer Part Number: M74HCT74B1R
• Description: IC FLIP/FLOP DUAL D TYPE 14-DIP
• Manufacturer: STMicroelectronics
• Series: 74HCTr
• Type: D-Typer

Specifications of M74HCT74B1R

• Function: Set(Preset) and Reset
• Output Type: Differential
• Number Of Elements: 2
• Number Of Bits Per Element: 1
• Frequency - Clock: 48MHz
• Delay Time - Propagation: 21ns
• Trigger Type: Positive Edge
• Current - Output High, Low: 4mA, 4mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 14-DIP (0.300", 7.62mm)
• Logic Family: HCT
• Technology: CMOS
• Number Of Bits: 2
• Number Of Elements: 2
• Clock-edge Trigger Type: Positive-Edge
• Polarity: Invert/Non-Invert
• Operating Supply Voltage (typ): 5V
• Package Type: PDIP
• Propagation Delay Time: 50ns
• Low Level Output Current: 4mA
• High Level Output Current: -4mA
• Frequency (max): 18MHz
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: -55C to 125C
• Operating Temperature Classification: Military
• Mounting: Through Hole
• Pin Count: 14
• Number Of Circuits: 2
• Logic Type: D-Type Flip-Flop
• Input Type: Single-Ended
• Supply Voltage (max): 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 55 C
• Supply Voltage (min): 4.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1922-5

M74HCT74
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
X : Don’t Care
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
2/10
CLR
H
H
H
H
L
L
PR
H
H
H
H
L
L
INPUTS
D
X
X
X
H
X
L
CK
X
X
X
PIN DESCRIPTION
Q
PIN No
Q
H
H
H
L
L
2, 12
3, 11
4, 10
1,13
n
5, 9
6, 8
14
7
OUTPUTS
1CLR, 2CLR
1CK, 2CK
1PR, 2PR
SYMBOL
Q
1Q, 2Q
1Q, 2Q
1D, 2D
Q
H
H
H
L
L
GND
n
Vcc
Asynchronous Reset -
Direct Input
Data Inputs
Clock Input
(LOW-to-HIGH,
Edge-Triggered)
Asynchronous Set - Direct
Input
True Flip-Flop Outputs
Complement Flip-Flop
Outputs
Ground (0V)
Positive Supply Voltage
NAME AND FUNCTION
NO CHANGE
FUNCTION
PRESET
CLEAR
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