參數(shù)資料
型號: 74LV244PWDH
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: Octal buffer/line driver 3-State
中文描述: LV/LV-A/LVX/H SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝: PLASTIC, SOT-360, TSSOP-20
文件頁數(shù): 7/12頁
文件大小: 114K
代理商: 74LV244PWDH
Philips Semiconductors
Product specification
74LV244
Octal buffer/line driver (3-State)
1998 May 20
7
TEST CIRCUIT
SWITCH POSITION
PULSE
GENERATOR
R
T
V
I
D.U.T.
V
O
C
L
R
L
= 1k
V
CC
Test Circuit for Outputs
DEFINITIONS
R
L
= Load resistor
C
L
= Load capacitance includes jig and probe capacitiance.
V
CC
V
I
< 2.7V
V
CC
TEST
t
PLH/
t
PHL
R
T
= Termination resistance should be equal to Z
OUT
of pulse generators.
2.7V
2.7–3.6V
4.5V
V
CC
50 pF
SV00896
S
1
t
PLZ/
t
PZL
t
PHZ/
t
PZH
Open
2 * V
CC
GND
R
L
= 1k
Open
GND
2 * V
CC
Figure 3. Load circuitry for switching times.
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