Specification	SN74ALS874BDWR

Clock Frequency	30 MHz
Current - Output High, Low [custom]	24 mA
Current - Output High, Low [custom]	2.6 mA
Current - Quiescent (Iq)	21 mA
Max Propagation Delay @ V, Max CL	14 ns
Mounting Type	Surface Mount
Number of Bits per Element	4
Number of Elements	2
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Output Type	Tri-State, Non-Inverted
Package / Case	24-SOIC
Package / Case [custom]	7.5 mm
Package / Case [custom]	0.295 in
Supplier Device Package	24-SOIC
Trigger Type	Positive Edge
Type	D-Type
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

SN74ALS874B Series

Dual 4-Bit D-Type Edge-Triggered Flip-Flops With 3-State Outputs

Part	Clock Frequency	Trigger Type	Current - Quiescent (Iq)	Output Type	Mounting Type	Supplier Device Package	Max Propagation Delay @ V, Max CL	Number of Elements	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case	Package / Case [custom]	Package / Case [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Type	Number of Bits per Element	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Package / Case [custom]	Package / Case [custom]
Texas Instruments SN74ALS874BFN
Texas Instruments SN74ALS874BNSR	30 MHz	Positive Edge	21 mA	Non-Inverted Tri-State	Surface Mount	24-SO	14 ns	2	4.5 V	5.5 V	24-SOIC	5.3 mm	0.209 in	70 °C	0 °C	D-Type	4	24 mA	2.6 mA
Texas Instruments SN74ALS874BDWR	30 MHz	Positive Edge	21 mA	Non-Inverted Tri-State	Surface Mount	24-SOIC	14 ns	2	4.5 V	5.5 V	24-SOIC			70 °C	0 °C	D-Type	4	24 mA	2.6 mA	7.5 mm	0.295 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2000	$ 2.34
Texas Instruments	LARGE T&R	1	$ 3.86
		100	$ 3.39
		250	$ 2.37
		1000	$ 1.91

Description

General part information

SN74ALS874B Series

These dual 4-bit D-type edge-triggered flip-flops feature 3-state outputs designed specifically as bus drivers. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The edge-triggered flip-flops enter data on the low-to-high transition of the clock (CLK) input. The SN54ALS874B, SN74ALS874B, and SN74AS874 have clear () inputs and noninverting Q outputs. The SN74ALS876A and SN74AS876 have preset () inputs and inverting Q\ outputs; takinglow causes the four Q or Q\ outputs to go low independently of the clock.

The SN54ALS874B is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS874B, SN74ALS876A, SN74AS874, and SN74AS876 devices are characterized for operation from 0°C to 70°C.

Documents

Technical documentation and resources

Dual 4-Bit D-Type Edge-Triggered Flip-Flops datasheet (Rev. C)

Data sheet