參數(shù)資料
型號: SN54LS398J
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: Dual 1-of-4 Decoder/Demultiplexer; Package: SOIC 16 LEAD; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500
中文描述: LS SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, CDIP20
封裝: CERAMIC, DIP-20
文件頁數(shù): 2/6頁
文件大?。?/td> 209K
代理商: SN54LS398J
5-558
FAST AND LS TTL DATA
SN54/74LS398
SN54/74LS399
FUNCTIONAL BLOCK DIAGRAM
* SN54/74LS398 only
FUNCTIONAL DESCRIPTION
The SN54/74LS398 and SN54/74LS399 are high-speed
Quad 2-Port Registers. They select four bits of data from two
sources (Ports) under the control of a common Select Input
(S). The selected data is transferred to a 4-Bit Output Register
synchronous with the LOW-to-HIGH transition of the Clock in-
put (CP). The 4-Bit RS type output register is fully edge-trig-
gered. The Data inputs (I) and Select inputs (S) must be stable
only a setup time prior to and hold time after the LOW-to-HIGH
transition of the Clock input for predictable operation. The
SN54/74LS398 has both Q and Q Outputs available.
FUNCTION TABLE
INPUTS
OUTPUTS
S
I0
I
I1
X
Q
Q*
I
L
H
I
h
X
H
L
h
X
I
L
H
h
X
h
H
L
*SN54/74LS398 only
I = LOW Voltage Level one setup time pior to the LOW-to-HIGH clock transition
h = HIGH Voltage Level one setup time prior to the LOW-to-HIGH clock transition
L = LOW Voltage Level
H = HIGH Voltage Level
X = Immaterial
相關(guān)PDF資料
PDF描述
SN54LS399J QUAD 2-PORT REGISTER
SN74LS398D QUAD 2-PORT REGISTER
SN74LS398N QUAD 2-PORT REGISTER
SN74LS399D QUAD 2-PORT REGISTER
SN74LS399DW QUAD 2-PORT REGISTER
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