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74ALVT16823 18-bit bus-interface D-type flip-flop with reset and enable (3-State)
Product specification Supersedes data of 1998 Mar 03 IC23 Data Handbook 1998 Jun 12
Philips Semiconductors
Philips Semiconductors
Product specification
2.5V/3.3V 18-bit bus-interface D-type flip-flop with reset and enable (3-State)
74ALVT16823
FEATURES
• Two sets of high speed parallel registers with positive
edge-triggered D-type flip-flops
DESCRIPTION
The 74ALVT16823 18-bit bus interface register is designed to eliminate the extra packages required to buffer existing registers and provide extra data width for wider data/address paths of buses carrying parity. The 74ALVT16823 has two 9-bit wide buffered registers with Clock Enable (nCE) and Master Reset (nMR) which are ideal for parity bus interfacing in high microprogrammed systems. The registers are fully edge-triggered. The state of each D input, one set-up time before the Low-to-High clock transition is transferred to the corresponding flip-flop’s Q output. It is designed for VCC operation from 2.5 V to 3.0 V with I/O compatibility to 5 V.
• 5V I/O Compatible • Ideal where high speed, light loading, or increased fan-in are
required with MOS microprocessors
• Live insertion/extraction permitted • Power-up 3-State • Power-up Reset • No bus current loading when output is tied to 5 V bus • Output capability: +64mA/–32mA • Latch-up protection exceeds 500mA per Jedec Std 17 • ESD protection exceeds 2000 V per MIL STD 883 Method 3015
and 200 V per Machine Model
• Bus hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
QUICK REFERENCE DATA
SYMBOL tPLH tPHL CIN COUT ICCZ PARAMETER Propagation delay nCP to nQx Input capacitance Output capacitance Total supply current CONDITIONS Tamb = 25°C; GND = 0V CL = 50pF VI = 0V or VCC VI/O = 0V or 3.0V Outputs disabled TYPICAL UNIT 2.5V 2.5 3 9 40 3.3V 1.9 3 9 70 ns pF pF µA
ORDERING INFORMATION
PACKAGES 56-Pin Plastic SSOP Type III 56-Pin Plastic TSSOP Type II TEMPERATURE RANGE –40°C to +85°C –40°C to +85°C OUTSIDE NORTH AMERICA 74ALVT16823 DL 74ALVT16823 DGG NORTH AMERICA AV16823 DL AV16823 DGG DWG NUMBER SOT371–1 SOT364–1
PIN DESCRIPTION
PIN NUMBER 2, 27 54, 52, 51, 49, 48, 47, 45, 44, 43 42, 41, 40, 38, 37, 36, 34, 33, 31 3, 5, 6, 8, 9, 10, 12, 13, 14 15, 16, 17, 19, 20, 21, 23, 24, 26 56, 29 55, 30 1, 28 4, 11, 18, 25, 32, 39, 46, 53 7, 22, 35, 50 SYMBOL 1OE, 2OE 1D0-1D8 2D0-2D8 1Q0-1Q8 2Q0-2Q8 1CP, 2CP 1CE, 2CE 1MR, 2MR GND VCC FUNCTION Output enable input (active-Low) Data inputs Data outputs Clock pulse input (active rising edge) Clock enable input (active-Low) Master reset input (active-Low) Ground (0V) Positive supply voltage
1998 Jun 12
2
853-2069 19558
Philips Semiconductors
Product specification
2.5V/3.3V 18-bit bus-interface D-type flip-flop with reset and enable (3-State)
74ALVT16823
PIN CONFIGURATION
1MR 1OE 1Q0 GND 1Q1 1Q2 VCC 1Q3 1Q4 1Q5 GND 1Q6 1Q7 1Q8 2Q0 2Q1 2Q2 GND 2Q3 2Q4 2Q5 VCC .