74AHC377; 74AHCT377
Octal D-type flip-flop with data enable; positive-edge trigger
The 74AHC377; 74AHCT377 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard No. 7-A.
The 74AHC377; 74AHCT377 has eight edge-triggered, D-type flip-flops with individual D inputs and Q outputs. A common clock input (CP) loads all flip-flops simultaneously when the data enable input (E) is LOW. The state of each D input, one set-up time before the LOW-to-HIGH clock transition, is transferred to the corresponding output (Qn) of the flip-flop. The E input is only required to be stable one set-up time prior to the LOW-to-HIGH transition for predictable operation.
For versions associated with the 74AHC377; 74AHCT377, refer to the following:
- For the master reset version, see 74AHC273; 74AHCT273
- For the transparent latch version, see 74AHC373; 74AHCT373
- For the 3-state version, see 74AHC374; 74AHCT374
Features and benefits
- Balanced propagation delays
- All inputs have Schmitt-trigger actions
- Inputs accept voltages higher than VCC
- Ideal for addressable register applications
- Data enable for address and data synchronization
- Eight positive-edge triggered D-type flip-flops
- Input levels:
- For 74AHC377: CMOS level
- For 74AHCT377: TTL level
- ESD protection:
- HBM EIA/JESD22-A114E exceeds 2000 V
- MM EIA/JESD22-A115-A exceeds 200 V
- CDM EIA/JESD22-C101C exceeds 1000 V
- Multiple package options
- Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Applications
Package
All type numbers in the table below are discontinued.
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74AHC377D | 74AHC377D,112 (935267994112) |
Obsolete | no package information | ||||
| 74AHC377D,118 (935267994118) |
Obsolete | ||||||
| 74AHC377PW | 74AHC377PW,112 (935267995112) |
Obsolete | no package information | ||||
| 74AHC377PW,118 (935267995118) |
Obsolete | ||||||
| 74AHCT377D | 74AHCT377D,112 (935267992112) |
Obsolete | no package information | ||||
| 74AHCT377D,118 (935267992118) |
Obsolete | ||||||
| 74AHCT377PW | 74AHCT377PW,112 (935267993112) |
Obsolete | no package information | ||||
| 74AHCT377PW,118 (935267993118) |
Obsolete | ||||||
Environmental information
All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74AHC377D | 74AHC377D,112 | 74AHC377D |
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| 74AHC377D | 74AHC377D,118 | 74AHC377D |
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| 74AHC377PW | 74AHC377PW,112 | 74AHC377PW |
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| 74AHC377PW | 74AHC377PW,118 | 74AHC377PW |
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| 74AHCT377D | 74AHCT377D,112 | 74AHCT377D |
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| 74AHCT377D | 74AHCT377D,118 | 74AHCT377D |
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| 74AHCT377PW | 74AHCT377PW,112 | 74AHCT377PW |
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| 74AHCT377PW | 74AHCT377PW,118 | 74AHCT377PW |
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Documentation (4)
| File name | Title | Type | Date |
|---|---|---|---|
| 74AHC_AHCT377 | Octal D-type flip-flop with data enable; positive-edge trigger | Data sheet | 2017-07-20 |
| mna610 | Block diagram: 74AHC377D, 74AHC377PW, 74AHCT377D, 74AHCT377PW | Block diagram | 2009-11-03 |
| ahc377 | ahc377 IBIS model | IBIS model | 2013-04-08 |
| ahct377 | ahct377 IBIS model | IBIS model | 2013-04-08 |
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Ordering, pricing & availability
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