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74F573; 74F574
General description
The 74F573 is an octal transparent latch coupled to eight 3-State output buffers. The two sections of the device are controlled independently by Enable (E) and Output Enable (OE) control gates.
The 74F573 is functionally identical to the 74F373 but has a broadside pinout configuration to facilitate PC board layout and allow easy interface with microprocessors.
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 setup 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 to the latch operation. When OE is Low, the latched or transparent data 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.
The 74F574 is functionally identical to the 74F374 but has a broadside pinout configuration to facilitate PC board layout and allow easy interface with microprocesors.
It is an 8-bit, edge triggered register coupled to eight 3-State output buffers. The two sections of the device are controlled independently by the clock (CP) and Output Enable (OE) control gates.
The register is fully edge-triggered. The state of each D input, one setup 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 independently of the latch operation. When OE is Low, the latched or transparent data 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
- 74F573 is broadside pinout version of 74F373
- 74F574 is broadside pinout version of 74F374
- Inputs and Outputs on opposite side of package allow easy interface to Microprocessors
- Useful as an Input or Output port for Microprocessors
- 3-State Outputs for Bus interfacing
- Common Output Enable
- 74F563 and 74F564 are inverting version of 74F573 and 74F574 respectively
- 3-State Outputs glitch free during power-up and power-down
- These are High-Speed replacements for N8TS805 and N8TS806
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| N74F573D | N74F573D | 9339 117 10602 | Volume production | SOT163-1
(SO20) | Tube (Signetics) | Standard Marking | N74F573D
| week 4, 2004 |
| N74F573D | N74F573D-T | 9339 117 10623 | Volume production | SOT163-1
(SO20) | Reel Pack, SMD, 13" (Signetics) | Standard Marking | N74F573D
| week 4, 2004 |
| N74F573DB | N74F573DB-T | 9351 986 70118 | Volume production | SOT339-1
(SSOP20) | Reel Pack, SMD, 13" | Standard Marking | N74F573DB
| Always Pb-free |
| N74F573DB | N74F573DB | 9351 986 70112 | Volume production | SOT339-1
(SSOP20) | Tube | Standard Marking | N74F573DB
| Always Pb-free |
| N74F573N | N74F573N | 9337 950 70602 | Volume production | SOT146-1
(DIP20) | Tube (Signetics) | Standard Marking | N74F573N
| Always Pb-free |
| N74F574D | N74F574D | 9339 117 20602 | Volume production | SOT163-1
(SO20) | Tube (Signetics) | Standard Marking | N74F574D
| week 4, 2004 |
| N74F574D | N74F574D-T | 9339 117 20623 | Volume production | SOT163-1
(SO20) | Reel Pack, SMD, 13" (Signetics) | Standard Marking | N74F574D
| week 4, 2004 |
| N74F574N | N74F574N | 9337 950 80602 | Volume production | SOT146-1
(DIP20) | Tube (Signetics) | Standard Marking | N74F574N
| Always Pb-free |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| N74F573D | 9339 117 10602 | 0.3000 | not available | |||||
| N74F573D | 9339 117 10623 | 0.3000 | Order samples | |||||
| N74F573DB | 9351 986 70118 | 0.3000 | Order samples | |||||
| N74F573DB | 9351 986 70112 | 0.3000 | not available | |||||
| N74F573N | 9337 950 70602 | 0.3600 | Order samples | |||||
| N74F574D | 9339 117 20602 | 0.3000 | NA | ARROW ELECTRONICS | 3,040 | 7/4/2008 | Buy online | not available |
| NA | FUTURE ELECTRONICS | 586 | 7/4/2008 | Buy online | ||||
| N74F574D | 9339 117 20623 | 0.3000 | NA | ARROW ELECTRONICS | 2,000 | 7/4/2008 | Buy online | Order samples |
| N74F574N | 9337 950 80602 | 0.3600 | NA | ARROW ELECTRONICS | 2,142 | 7/4/2008 | Buy online | Order samples |
| NA | AVNET ELECTRONICS MARKETING | 1,071 | 7/4/2008 | Buy online |
Applications
Related applications
Low / mid-range analog CRT TV (TV200)
Highly featured analog CRT TV (TV210)
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) |
|---|---|---|---|---|---|---|---|---|
| N74F573D | SOT163-1
(SO20) | Octal D-Type Transparent Latch; Broadside Pinout Configuration (3-State) | 5.5 | 4.5-5.5 V | 20 | TTL | -3/+24 mA | |
| N74F573DB | SOT339-1
(SSOP20) | Octal D-Type Transparent Latch; Broadside Pinout Configuration (3-State) | 5.5 | 4.5-5.5 V | 20 | TTL | -3/+24 mA | |
| N74F573N | SOT146-1
(DIP20) | Octal D-Type Transparent Latch; Broadside Pinout Configuration (3-State) | 5.5 | 4.5-5.5 V | 20 | TTL | -3/+24 mA | |
| N74F574D | SOT163-1
(SO20) | Octal D-Type Flip-Flop; Postive-Edge Trigger; Broadside Pinout Configuration (3-State) | 5 | 4.5-5.5 V | 20 | TTL | -3/+24 mA | 180 |
| N74F574N | SOT146-1
(DIP20) | Octal D-Type Flip-Flop; Postive-Edge Trigger; Broadside Pinout Configuration (3-State) | 5 | 4.5-5.5 V | 20 | TTL | -3/+24 mA | 180 |
Similar products
74F573; 74F574 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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