參數(shù)資料
型號(hào): N74F269DB,118
廠商: NXP Semiconductors
文件頁(yè)數(shù): 5/19頁(yè)
文件大?。?/td> 0K
描述: IC COUNTER 8BIT BINARY 24SSOP
產(chǎn)品培訓(xùn)模塊: Logic Packages
標(biāo)準(zhǔn)包裝: 1,000
系列: 74F
邏輯類型: 二進(jìn)制計(jì)數(shù)器
方向: 上,下
元件數(shù): 1
每個(gè)元件的位元數(shù): 8
計(jì)數(shù)速率: 115MHz
觸發(fā)器類型: 正邊沿
電源電壓: 4.5 V ~ 5.5 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 24-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 24-SSOP
包裝: 帶卷 (TR)
其它名稱: 935242010118
N74F269DB-T
N74F269DB-T-ND
74F269
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 6 — 14 December 2011
13 of 19
NXP Semiconductors
74F269
8-bit bidirectional binary counter
a. Input pulse definition
b. Test circuit
Test data is given in Table 8.
Definitions for test circuit:
CL = Load capacitance including jig and probe capacitance.
RL = Load resistance.
RT = Termination resistance should be equal to output impedance Zo of the pulse generator.
VEXT = External voltage for measuring switching times.
Fig 13. Test circuit for measuring switching times
001aai298
VM
tW
10 %
90 %
0 V
VI
negative
pulse
positive
pulse
0 V
VM
90 %
10 %
90 %
10 %
tf
tr
tf
VEXT
VCC
VI
VO
mna616
DUT
CL
RT
RL
G
Table 8.
Test data
Input
Load
VEXT
VI
fI
tW
tr, tf
CL
RL
tPHL, tPLH
tPZH, tPHZ
tPZL, tPLZ
3.0 V
1 MHz
500 ns
2.5 ns
50 pF
500
open
7.0 V
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