参数资料
| 型号： | 74AHCT241D,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 13/15页 |
| 文件大小： | 0K |
| 描述： | IC BUFFER/LINEDVR 3ST SO20 |
| 标准包装： | 1 |
| 系列： | 74AHCT |
| 逻辑类型： | 缓冲器/线路驱动器，非反相 |
| 元件数： | 2 |
| 每个元件的位元数： | 4 |
| 输出电流高，低： | 8mA，8mA |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SO |
| 包装： | 标准包装 |
| 其它名称： | 568-5242-6 |
74AHC_AHCT241_1
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 01 — 11 January 2010
7 of 15
NXP Semiconductors
74AHC241; 74AHCT241
Octal buffer/line driver; 3-state
[1]
Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V).
[2]
tpd is the same as tPLH and tPHL; ten is the same as tPZH and tPZL; tdis is the same as tPLZ and tPHZ.
[3]
CPD is used to determine the dynamic power dissipation (PD in μW).
PD = CPD × VCC2 × fi × N + ∑(CL × VCC2 × fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
∑(C
L × VCC
2
× f
o) = sum of outputs.
11. Waveforms
ten
enable time
1OE to 1Yn; see Figure 6
VCC = 4.5 V to 5.5 V; CL = 15 pF
-
3.7
6.6
1.0
7.8
9.2
ns
VCC = 4.5 V to 5.5 V; CL = 50 pF
-
5.4
9.5
1.0
11.1
12.4
ns
2OE to 2Yn; see Figure 7
VCC = 4.5 V to 5.5 V; CL = 15 pF
-
3.7
6.6
1.0
7.8
9.2
ns
VCC = 4.5 V to 5.5 V; CL = 50 pF
-
5.4
9.5
1.0
11.1
12.4
ns
tdis
disable time
1OE to 1Yn; see Figure 6
VCC = 4.5 V to 5.5 V; CL = 15 pF
-
4.8
7.8
1.0
8.8
9.7
ns
VCC = 4.5 V to 5.5 V; CL = 50 pF
-
7.1
10.5
1.0
11.4
13.5
ns
2OE to 2Yn; see Figure 7
VCC = 4.5 V to 5.5 V; CL = 15 pF
-
4.8
7.8
1.0
8.8
9.7
ns
VCC = 4.5 V to 5.5 V; CL = 50 pF
-
7.1
10.5
1.0
11.4
13.5
ns
CPD
power
dissipation
capacitance
VI = GND to VCC; CL = 50 pF;
fi = 1 MHz
-
9
-
pF
Table 7.
Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 8.
Symbol Parameter
Conditions
25
°C
40 °C to +125 °C
Unit
Min
Typ[1]
Max
Min
Max
(85
°C)
Max
(125
°C)
Measurement points are given in Table 8.
VOL and VOH are typical voltage output drop that occur with the output load.
Fig 5.
Propagation delay input (nAn) to output (nYn)
mgu781
nAn input
nYn output
tPHL
tPLH
GND
VI
VM
VOH
VOL
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