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74F373; 74F374
General description
The 74F373 is an octal transparent latch coupled to eight 3-State output devices. The two sections of the device are controlled independently by enable (E) and output enable (OE) control gates.
The data on the D inputs is transferred to the latch outputs when the enable (E) input is HIGH. The latch remains transparent to the data input while E is HIGH, and stores the data that is present one set-up time before the HIGH-to-LOW enable transition.
The 3-State output buffers are designed to drive heavily loaded 3-State buses, MOS memories, or MOS microprocessors.
The active-LOW output enable (OE) controls all eight 3-State buffers independent of the latch operation. When OE is LOW, latched or transparent data appears at the output.
When OE is HIGH, the outputs are in high impedance ?off? state, which means they will neither drive nor load the bus.
The 74F374 is an 8-bit edge triggered register coupled to eight 3-State output buffers. The two sections of the device are controlled independently by clock (CP) and output enable (OE) control gates.
The register is fully edge triggered. The state of the D input, one set-up time before the LOW-to-HIGH clock transition is transferred to the corresponding flip-flop?s Q output.
The 3-State output buffers are designed to drive heavily loaded 3-State buses, MOS memories, or MOS microprocessors.
The active-LOW output enable (OE) controls all eight 3-State buffers independent of the register operation. When OE is LOW, the data in the register appears at the outputs. When OE is HIGH, the outputs are in high impedance ?off? state, which means they will neither drive nor load the bus.
Features
- 8-bit transparent latch ? 74F373
- 8-bit positive edge triggered register ? 74F374
- 3-State outputs glitch free during power-up and power-down
- Common 3-State output register
- Independent register and 3-State buffer operation
- SSOP Type II Package
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| N74F373D | N74F373D | 9337 395 60602 | Volume production | SOT163-1
(SO20) | Tube (Signetics) | Standard Marking | N74F373D
| week 4, 2004 |
| N74F373D | N74F373D-T | 9337 395 60623 | Volume production | SOT163-1
(SO20) | Reel Pack, SMD, 13" (Signetics) | Standard Marking | N74F373D
| week 4, 2004 |
| N74F373DB | N74F373DB | 9351 861 50112 | Volume production | SOT339-1
(SSOP20) | Tube | Standard Marking | N74F373DB
| week 12, 2005 |
| N74F373DB | N74F373DB-T | 9351 861 50118 | Volume production | SOT339-1
(SSOP20) | Reel Pack, SMD, 13" | Standard Marking | N74F373DB
| week 12, 2005 |
| N74F373N | N74F373N | 9336 468 10602 | Volume production | SOT146-1
(DIP20) | Tube (Signetics) | Standard Marking | N74F373N
| Always Pb-free |
| N74F374D | N74F374D | 9337 395 70602 | Volume production | SOT163-1
(SO20) | Tube (Signetics) | Standard Marking | N74F374D
| week 4, 2004 |
| N74F374D | N74F374D-T | 9337 395 70623 | Volume production | SOT163-1
(SO20) | Reel Pack, SMD, 13" (Signetics) | Standard Marking | N74F374D
| week 4, 2004 |
| N74F374DB | N74F374DB | 9351 861 40112 | Volume production | SOT339-1
(SSOP20) | Tube | Standard Marking | N74F374DB
| week 12, 2005 |
| N74F374DB | N74F374DB-T | 9351 861 40118 | Volume production | SOT339-1
(SSOP20) | Reel Pack, SMD, 13" | Standard Marking | N74F374DB
| week 12, 2005 |
| N74F374N | N74F374N | 9336 468 20602 | Volume production | SOT146-1
(DIP20) | Tube (Signetics) | Standard Marking | N74F374N
| Always Pb-free |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| N74F373D | 9337 395 60602 | 0.2400 | NA | ARROW ELECTRONICS | 152 | 9/4/2008 | Buy online | Order samples |
| NA | AVNET ELECTRONICS MARKETING | 2,540 | 9/5/2008 | Buy online | ||||
| N74F373D | 9337 395 60623 | 0.2400 | NA | ARROW ELECTRONICS | 2,000 | 9/4/2008 | Buy online | Order samples |
| NA | FUTURE ELECTRONICS | 2,400 | 9/4/2008 | Buy online | ||||
| N74F373DB | 9351 861 50112 | 0.2700 | not available | |||||
| N74F373DB | 9351 861 50118 | 0.2700 | Order samples | |||||
| N74F373N | 9336 468 10602 | 0.3000 | NA | ARROW ELECTRONICS | 1,587 | 9/4/2008 | Buy online | Order samples |
| NA | AVNET ELECTRONICS MARKETING | 708 | 9/5/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS | 2,384 | 9/4/2008 | Buy online | ||||
| N74F374D | 9337 395 70602 | 0.2400 | NA | AVNET ELECTRONICS MARKETING | 1,410 | 9/5/2008 | Buy online | not available |
| N74F374D | 9337 395 70623 | 0.2400 | Order samples | |||||
| N74F374DB | 9351 861 40112 | 0.2900 | not available | |||||
| N74F374DB | 9351 861 40118 | 0.2900 | Order samples | |||||
| N74F374N | 9336 468 20602 | 0.3400 | NA | ARROW ELECTRONICS | 252 | 9/4/2008 | Buy online | Order samples |
Applications
Related applications
50-60 Hz CRT integrated DTV (TV210D)
Mid-range integrated DTV (TV810)
Technical documents
Application Notes
AN202_1;
Testing and specifying FAST logic (01-Jun-87)
AN203_2;
Test Fixtures for High Speed Logic (02-Apr-98)
AN216_2;
Arbitration in shared resource systems (18-Jul-88)
Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | No. of Pins | Logic Switching Levels | Output Drive Capability | Fmax(MHz) |
|---|---|---|---|---|---|---|---|---|
| N74F373D | SOT163-1
(SO20) | Octal D-Type Transparent Latch (3-State) | 5.3 | 4.5-5.5 V | 20 | TTL | -3/+24 mA | |
| N74F373DB | SOT339-1
(SSOP20) | Octal D-Type Transparent Latch (3-State) | 5.3 | 4.5-5.5 V | 20 | TTL | -3/+24 mA | |
| N74F373N | SOT146-1
(DIP20) | Octal D-Type Transparent Latch (3-State) | 5.3 | 4.5-5.5 V | 20 | TTL | -3/+24 mA | |
| N74F374D | SOT163-1
(SO20) | Octal D-Type Flip-Flop; Postive-Edge Trigger (3-State) | 5 | 4.5-5.5 V | 20 | TTL | -3/+24 mA | 165 |
| N74F374DB | SOT339-1
(SSOP20) | Octal D-Type Flip-Flop; Postive-Edge Trigger (3-State) | 5 | 4.5-5.5 V | 20 | TTL | -3/+24 mA | 165 |
| N74F374N | SOT146-1
(DIP20) | Octal D-Type Flip-Flop; Postive-Edge Trigger (3-State) | 5 | 4.5-5.5 V | 20 | TTL | -3/+24 mA | 165 |
Similar products
74F373; 74F374 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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