SN74LVC374A-Q1

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Automotive Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs

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Data sheet

document-pdfAcrobat Octal Edge-Triggered D-Type Flip-Flop With 3-State Outputs datasheet (Rev. B)

SN74LVC374A-Q1

ACTIVE

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Product details

Number of channels

8

Technology family

LVC

Input type

Standard CMOS

Output type

3-State

Clock frequency (max) (MHz)

100

IOL (max) (mA)

24

IOH (max) (mA)

-24

Supply current (max) (µA)

10

Features

Balanced outputs, Over-voltage tolerant inputs, Partial power down (Ioff), Very high speed (tpd 5-10ns)

Operating temperature range (°C)

-40 to 125

Rating

Automotive

Number of channels

8

Technology family

LVC

Input type

Standard CMOS

Output type

3-State

Clock frequency (max) (MHz)

100

IOL (max) (mA)

24

IOH (max) (mA)

-24

Supply current (max) (µA)

10

Features

Balanced outputs, Over-voltage tolerant inputs, Partial power down (Ioff), Very high speed (tpd 5-10ns)

Operating temperature range (°C)

-40 to 125

Rating

Automotive

TSSOP (PW)

20

41.6 mm² (6.5 mm × 6.4 mm)

SOIC (DW)

20

131.84 mm² (12.8 mm × 10.3 mm)

Qualified for Automotive Applications
ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
Operates From 2 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Max t_pd of 8.5 ns at 3.3 V
Typical V_OLP (Output Ground Bounce)
<0.8 V at V_CC = 3.3 V, T_A = 25°C
Typical V_OHV (Output V_OH Undershoot)
>2 V at V_CC = 3.3 V, T_A = 25°C
Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V V_CC)
I_off Supports Partial-Power-Down Mode Operation

Qualified for Automotive Applications
ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
Operates From 2 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Max t_pd of 8.5 ns at 3.3 V
Typical V_OLP (Output Ground Bounce)
<0.8 V at V_CC = 3.3 V, T_A = 25°C
Typical V_OHV (Output V_OH Undershoot)
>2 V at V_CC = 3.3 V, T_A = 25°C
Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V V_CC)
I_off Supports Partial-Power-Down Mode Operation

The SN74LVC374A octal edge-triggered D-type flip-flop is designed for 2.7-V to 3.6-V V_CC operation.

This device features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. This device is particularly suitable for implementing buffer registers, input/output (I/O) ports, bidirectional bus drivers, and working registers.

On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels set up at the data (D) inputs.

A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.

OE does not affect internal operations of the latch. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment.

This device is fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

To ensure the high-impedance state during power up or power down, (OE) should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.