MC74AC323 데이터 시트보기 (PDF) - ON Semiconductor
부품명
상세내역
일치하는 목록
MC74AC323
ON Semiconductor
MC74AC323 Datasheet PDF : 12 Pages
| |||
8ĆInput Universal Shift/Storage
Register with Synchronous
Reset and Common I/O Pins
The MC74AC323/74ACT323 is an 8-bit universal shift/storage
register with3-state outputs. Its function is similar to the
MC74AC299/74ACT299 with the exception of Synchronous Reset.
Parallel load inputs and flip-flop outputs are multiplexed to
minimize pin count. Separate serial inputs and outputs are provided
for Q0 and Q7 to allow easy cascading. Four operation modes are
possible: hold (store), shift left, shift right and parallel load.
• Common Parallel I/O for Reduced Pin Count
• Additional Serial Inputs and Outputs for Expansion
• Four Operating Modes: Shift Left, Shift Right, Load and Store
• 3-State Outputs for Bus-Oriented Applications
• Outputs Source/Sink 24 mA
• ′ACT323 Has TTL Compatible Inputs
VCC S1 DS7 Q7 I/O7 I/O5 I/O3 I/O1 CP DS0
20 19 18 17 16 15 14 13 12 11
MC74AC323
MC74ACT323
8-INPUT UNIVERSAL SHIFT/
STORAGE REGISTER WITH
SYNCHRONOUS RESET
AND COMMON I/O PINS
N SUFFIX
CASE 738-03
PLASTIC
1 2 3 4 5 6 7 8 9 10
S0 OE1 OE2 I/O6 I/O4 I/O2 I/O0 Q0 SR GND
Figure 1. Pinout: 20–Lead Packages Conductors
(Top View)
PIN NAMES
CP
DS0
DS7
S0, S1
SR
OE1, OE2
I/O0–I/O7
Q0, Q7
Clock Pulse Input
Serial Data Input for Right Shift
Serial Data Input for Left Shift
Mode Select Inputs
Synchronous Master Reset
3-State Output Enable Inputs
Multipled Parallel Data Inputs or
3-State Parallel Data Outputs
Serial Outputs
DW SUFFIX
CASE 751D-04
PLASTIC
S0
DS0
DS7
S1
CP
Q7
1
2
OE
SR Q0 I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7
Figure 2. LOGIC SYMBOL
© Semiconductor Components Industries, LLC, 2001
1
February, 2001 – Rev. 4
Publication Order Number:
MC74AC323/D
Share Link: