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參數資料
| 型號： | 74LCX543WMX |
| 廠商： | Fairchild Semiconductor |
| 文件頁數： | 4/8頁 |
| 文件大小： | 0K |
| 描述： | IC REGISTERED TXRX 8BIT 24SOIC |
| 標準包裝： | 1,000 |
| 系列： | 74LCX |
| 邏輯類型： | 寄存收發器，非反相 |
| 元件數： | 1 |
| 每個元件的位元數： | 8 |
| 輸出電流高，低： | 24mA，24mA |
| 電源電壓： | 2 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 24-SOIC |
| 包裝： | 帶卷 (TR) |
www.fairchildsemi.com
4
74LCX543
DC Electrical Characteristics (Continued)
Note 5: Outputs disabled or 3-STATE only.
AC Electrical Characteristics
Note 6: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The
specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH).
Dynamic Switching Characteristics
Capacitance
Symbol
Parameter
Conditions
VCC
TA = 40°C to +85°C
Units
(V)
Min
Max
ICC
Quiescent Supply Current
VI = VCC or GND
2.3
3.6
10
A
3.6V
≤ V
I, VO ≤ 5.5V (Note 5)
2.3
3.6
±10
I
CC
Increase in ICC per Input
VIH = VCC 0.6V
2.3
3.6
500
A
Symbol
Parameter
TA = 40°C to +85°C, RL = 500
Units
VCC = 3.3V ± 0.3V
VCC = 2.7V
VCC = 2.5V ± 0.2V
CL = 50 pF
CL = 30 pF
Min
Max
Min
Max
Min
Max
tPHL
Propagation Delay
1.5
7.0
1.5
8.0
1.5
8.4
ns
tPLH
An to Bn or Bn to An
1.5
7.0
1.5
8.0
1.5
8.4
tPHL
Propagation Delay
1.5
8.5
1.5
9.5
1.5
10.5
ns
tPLH
LEBA to An or LEAB to Bn
1.5
8.5
1.5
9.5
1.5
10.5
tPZL
Output Enable Time
1.5
9.0
1.5
10.0
1.5
11.0
ns
tPZH
OEBA or OEAB to An or Bn
1.5
9.0
1.5
10.0
1.5
11.0
CEBA or CEAB to An or Bn
tPLZ
Output Disable Time
1.5
7.0
1.5
7.5
1.5
8.4
ns
tPHZ
OEBA or OEAB to An or Bn
1.5
7.0
1.5
7.5
1.5
8.4
CEBA or CEAB to An or Bn
tS
Setup Time, HIGH or LOW Data to LEXX
2.5
4.0
ns
tH
Hold Time, HIGH or LOW Data to LEXX
1.5
2.0
ns
tW
Pulse Width, Latch Enable, LOW
3.3
ns
tOSHL
Output to Output Skew
1.0
ns
tOSLH
(Note 6)
1.0
Symbol
Parameter
Conditions
VCC
TA = 25°C
Units
(V)
Typical
VOLP
Quiet Output Dynamic Peak VOL
CL = 50 pF, VIH = 3.3V, VIL = 0V
3.3
0.8
V
CL = 30 pF, VIH = 2.5V, VIL = 0V
2.5
0.6
VOLV
Quiet Output Dynamic Valley VOL
CL = 50 pF, VIH = 3.3V, VIL = 0V
3.3
0.8
V
CL = 30 pF, VIH = 2.5V, VIL = 0V
2.5
0.6
Symbol
Parameter
Conditions
Typical
Units
CIN
Input Capacitance
VCC = Open, VI = 0V or VCC
7pF
CI/O
Input/Output Capacitance
VCC = 3.3V, VI = 0V or VCC
8pF
CPD
Power Dissipation Capacitance
VCC = 3.3V, VI = 0V or VCC, f = 10 MHz
25
pF
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