参数资料
型号: MC74LCX2952SD
厂商: ON SEMICONDUCTOR
元件分类: 总线收发器
英文描述: LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
封装: PLASTIC, SSOP-24
文件页数: 5/43页
文件大小: 383K
代理商: MC74LCX2952SD
LCX Family Specifications
MOTOROLA
LCX DATA
BR1339 — REV 3
8
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
Condition
Typical
Unit
CIN
Input Capacitance
VCC = 3.3V, VI = 0V or VCC
7
pF
COUT
Output Capacitance
VCC = 3.3V, VI = 0V or VCC
8
pF
CI/O
Input/Output Capacitance (Note 5.)
VCC = 3.3V, VI = 0V or VCC
8
pF
CPD
Power Dissipation Capacitance
10MHz, VCC = 3.3V, VI = 0V or VCC
Note 6.
pF
5. Bidirectional devices only.
6. Function dependent, see individual datasheets.
PULSE WIDTH
tR = tF = 2.5ns (or fast as required) from 10% to 90%;
Output requirements: VOL ≤ 0.8V, VOH ≥ 2.0V
2.7V
0V
2.7V
0V
1.5V
Figure 1. LCX AC Waveforms
tw
1.5V
tw
OPEN
PULSE
GENERATOR
RT
DUT
VCC
RL
R1
CL
6V
GND
TEST
SWITCH
tPLH, tPHL
Open
tPZL, tPLZ
6V
Open Collector/Drain tPLH and tPHL
6V
tPZH, tPHZ
GND
CL = 50pF or equivalent (Includes jig and probe capacitance)
RL = R1 = 500 or equivalent
RT = ZOUT of pulse generator (typically 50)
Figure 2. LCX Test Circuit
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