參數(shù)資料
型號(hào)： 74AHC273PW,118
廠商： NXP Semiconductors
文件頁(yè)數(shù)： 13/13頁(yè)
文件大?。?/td> 0K
描述： IC OCT D FF POS-EDGE TRG 20TSSOP
產(chǎn)品培訓(xùn)模塊： Logic Packages
標(biāo)準(zhǔn)包裝： 2,500
系列： 74AHC
功能： 主復(fù)位
類型： D 型總線
輸出類型： 非反相
元件數(shù)： 1
每個(gè)元件的位元數(shù)： 8
頻率 - 時(shí)鐘： 50MHz
延遲時(shí)間 - 傳輸： 6ns
觸發(fā)器類型： 正邊沿
輸出電流高，低： 8mA，8mA
電源電壓： 2 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 20-TSSOP（0.173"，4.40mm 寬）
包裝： 帶卷 (TR)
74AHC_AHCT273_3
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 13 May 2008
9 of 18
NXP Semiconductors
74AHC273; 74AHCT273
Octal D-type ip-op with reset; positive-edge trigger
[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.
[3]
tpd is the same as tPHL only.
[4]
CPD is used to determine the dynamic power dissipation (PD in W).
PD =CPD × VCC2 × fi × N+ Σ(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;
Σ(CL × VCC2 × fo) = sum of the outputs.
trec
recovery
time
MR to CP; see Figure 8
VCC = 3.0 V to 3.6 V
2.5
-
2.5
-
2.5
-
ns
VCC = 4.5 V to 5.5 V
2.0
-
2.0
-
2.0
-
ns
CPD
power
dissipation
capacitance
fi = 1 MHz; VI = GND to VCC
-14
-
pF
74AHCT273; VCC = 4.5 V to 5.5 V
tpd
propagation
delay
CP to Qn; see Figure 7
CL = 15 pF
-
4.0
7.5
1.0
8.8
1.0
9.5
ns
CL = 50 pF
-
5.8
9.2
1.0
10.5
1.0
11.5
ns
MR to Qn; see Figure 8
CL = 15 pF
-
3.9
10.0
1.0
11.6
1.0
12.5
ns
CL = 50 pF
-
5.6
11.0
1.0
12.6
1.0
14.0
ns
fmax
maximum
frequency
CL = 15 pF
75
120
-
65
-
65
-
MHz
CL = 50 pF
50
75
-
45
-
45
-
MHz
tW
pulse width
CP HIGH or LOW;
5.0
-
6.5
-
6.5
-
ns
MR LOW; see Figure 8
5.0
-
6.0
-
6.0
-
ns
tsu
set-up time
Dn to CP; see Figure 9
3.0
-
3.0
-
3.0
-
ns
th
hold time
Dn to CP; see Figure 9
1.0
-
1.0
-
1.0
-
ns
trec
recovery
time
MR to CP; see Figure 8
2.5
-
2.5
-
2.5
-
ns
CPD
power
dissipation
capacitance
fi = 1 MHz; VI = GND to VCC
-18
-
pF
Table 7.
Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 10.
Symbol Parameter
Conditions
25
°C
40 °C to +85 °C 40 °C to +125 °C Unit
Min
Typ[1] Max
Min
Max
Min
Max
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