FAST CMOS 8-INPUT UNIVERSAL SHIFT REGISTER
Description
®
FAST CMOS 8-INPUT UNIVERSAL SHIFT REGISTER
DESCRIPTION:
IDT54/74FCT299 IDT54/74FCT299A IDT54/74FCT299C
Integrated Device Technology, Inc.
FEATURES:
• • • • • • • • • • • • • • IDT54/74FCT299 equivalent to FAST™ speed IDT54/74FCT299A 25% faster than FAST IDT54/74FCT299C 35% faster than FAST Equivalent to FAST output drive over full temperature and voltage supply extremes IOL = 48mA (commercial) and 32mA (military) CMOS power levels (1mW typ.
static) TTL input and output level compatible CMOS output level compatible Substantially lower input current levels than FAST (5µA max.
) 8-input universal shift register JEDEC standard pinout for DIP and LCC Product available in Radiation Tolerant and Radiation Enhanced versions Military product compliant to MIL-STD-883, Class B Standard Military Drawing# 5962-86862 is listed on this function.
Refer to section 2.
The IDT54/74FCT299 and IDT54/74FCT299A/C are built using an advanced dual metal CMOS technology.
The IDT54/ 74FCT299 and IDT54/74FCT299A/C are 8-input universal shift/storage registers with 3-state outputs.
Four modes of operation are possible: hold (store), shift left, shift right and load data.
The parallel load inputs and flip-flop outputs are multiplexed to reduce the total number of package pins.
Additional outputs are provided for flip-flops Q0 and Q7 to allow easy serial cascading.
A separate active LOW Master Reset is used to reset the register.
FUNCTIONAL BLOCK DIAGRAM
S1 S0
DS 7 DS 0
CP CD Q0 MR OE 1 OE 2 I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7
2561 drw 01
D CP Q
CD
D CP Q
CD
D CP Q
CD
D CP Q
CD
D CP Q
CD
D CP Q
CD
D CP Q
CD
D CP Q Q7
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST is a registered trademark of National Semiconductor Co.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1994 Integrated Device Technology, Inc.
MAY 1992
DSC-4604/3
7.
11
1
IDT54/74FCT299/A/C FAST CMOS 8-INPUT UNIVERSAL SHIFT REGISTER
MILITARY AND COMMERCIAL TEMPERAT...
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