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74ALVCH16843

nexperia
Part Number 74ALVCH16843
Manufacturer nexperia
Description 18-bit bus-interface D-type latch
Published Jul 23, 2019
Detailed Description 74ALVCH16843 18-bit bus-interface D-type latch; 3-State Rev. 3 — 20 November 2017 Product data sheet 1 General descrip...
Datasheet PDF File 74ALVCH16843 PDF File

74ALVCH16843
74ALVCH16843

Overview
74ALVCH16843 18-bit bus-interface D-type latch; 3-State Rev.
3 — 20 November 2017 Product data sheet 1 General description The 74ALVCH16843 has two 9–bit D-type latch featuring separate D-type inputs for each latch and 3-State outputs for bus oriented applications.
The two sections of each register are controlled independently by the latch enable (nLE), clear (nCLR), preset (nPRE) and output enable (nOE) control gates.
When nOE is LOW, the data in the registers appear at the outputs.
When nOE is HIGH, the outputs are in the high impedance OFF state.
Operation of the nOE input does not affect the state of the flip-flops.
The 74ALVCH16843 has active bus hold circuitry which is provided to hold unused or floating data inputs at a valid logic level.
This feature eliminates the need for external pull-up or pull-down resistors.
2 Features and benefits • Wide supply voltage range of 1.
2V to 3.
6V • CMOS low power consumption • Direct interface with TTL levels • Current drive ±24 mA at VCC = 3.
0 V.
• MULTIBYTE flow-through standard pin-out architecture • Low inductance multiple VCC and GND pins for minimize noise and ground bounce • All data inputs have bushold • Output drive capability 50 Ω transmission lines at 85 °C • 3-state non-inverting outputs for bus oriented applications • Complies with JEDEC standards: – JESD8-5 (2.
3 V to 2.
7 V) – JESD8B/JESD36 (2.
7 V to 3.
6 V) • ESD protection: – HBM ANSI/ESDA/JEDEC JS-001 exceeds 2000 V – CDM JESD22-C101E exceeds 1000 V 3 Ordering information Table 1.
 Ordering information Type number Package Temperature range Name 74ALVCH16843DGG -40 °C to +85 °C TSSOP56 Description plastic thin shrink small outline package; 56 leads; body width 6.
1 mm Version SOT364-1 Nexperia 4 Functional diagram 1 55 2 56 1CLR 1PRE 1OE 1LE 3 1Q0 1D0 54 5 1Q1 1D1 52 6 1Q2 1D2 51 8 1Q3 1D3 49 9 1Q4 1D4 48 10 1Q5 1D5 47 12 1Q6 1D6 45 13 1Q7 1D7 44 14 1Q8 1D8 43 15 2Q0 2D0 42 16 2Q1 2D1 41 17 2Q2 2D2 40 19 2Q3 2D3 38 20 ...


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