Features: ` ESD protection:HBM EIA/JESD22-A114-A exceeds 2000 V MM EIA/JESD22-A115-A exceeds 200 V` Balanced propagation delays` Inputs accepts voltages higher than VCC` For AHC only:operates with CMOS input levels` For AHCT only:operates with TTL input levels` Output capability: standard` ICC cat...
74AHC74: Features: ` ESD protection:HBM EIA/JESD22-A114-A exceeds 2000 V MM EIA/JESD22-A115-A exceeds 200 V` Balanced propagation delays` Inputs accepts voltages higher than VCC` For AHC only:operates with C...
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` ESD protection:HBM EIA/JESD22-A114-A exceeds 2000 V MM EIA/JESD22-A115-A exceeds 200 V
` Balanced propagation delays
` Inputs accepts voltages higher than VCC
` For AHC only:operates with CMOS input levels
` For AHCT only:operates with TTL input levels
` Output capability: standard
` ICC category: flip-flops
` Specified from
-40 to +85 and +125.
SYMBOL | PARAMETER | CONDITIONS | MIN. | MAX. | UNIT |
VCC | DC supply voltage | -0.5 | +7.0 | V | |
VI | input voltage | -0.5 | +7.0 | V | |
IIK | DC input diode current | VI < -0.5 V; note 1 | - | -20 | mA |
IOK | DC output diode current | VO < -0.5 V or VO > VCC + 0.5 V; note 1 | - | ±20 | mA |
IO | DC output source or sink current | -0.5 V < VO < VCC + 0.5 V | - | ±25 | mA |
ICC | DC VCC or GND current | - | ±75 | mA | |
Tstg | storage temperature | -65 | +150 | ||
PD | power dissipation per package | for temperature range: -40 to +85 ; note 2 | - | 500 | mW |
The 74AHC74 is high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard No. 7A.
The 74AHC74 dual positive-edge triggered, D-type flip-flops with individual data (D)inputs, clock (CP) inputs, set (SD) and reset (RD) inputs; also complementary Q and Q outputs.
The set and reset are asynchronous active LOW inputs and operate independently of the clock input.Information on the data input is transferred to the Q output on the LOW-to-HIGH transition of the clock pulse. The D inputs must be stable one set-up time prior to the LOW-to-HIGH clock transition for predictable operation.
Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times.