參數(shù)資料
型號(hào)： 74F269SCX
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： Synchronous Up/Down Counter
中文描述： F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 8-BIT BIDIRECTIONAL BINARY COUNTER, PDSO24
封裝： 0.300 INCH, MS-013, SOIC-24
文件頁(yè)數(shù)： 2/14頁(yè)
文件大小： 118K
代理商： 74F269SCX
Philips Semiconductors
Product specification
74F269
8–bit bidirectional binary counter
2
1996 Jan 05
853–0056 16186
FEATURES
Synchronous counting and loading
Built-in look-ahead carry capability
Count frequency 115MHz typ
Supply current 95mA typ
DESCRIPTION
The 74F269 is a fully synchronous 8-stage Up/Down Counter
featuring a preset capability for programmable operation, carry
look-ahead for easy cascading and a U/D input to control the
direction of counting. All state changes, whether in counting or
parallel loading, are initiated by the rising edge of the clock.
TYPE
TYPICAL f
MAX
TYPICAL
SUPPLY CURRENT
(TOTAL)
74F269
115MHz
95mA
PIN CONFIGURATION
24
23
22
21
20
19
18
17
16
15
14
13
12
10
11
9
8
7
6
5
4
3
2
1
U/D
CEP
CET
TC
PE
P0
P1
P2
P3
V
CC
P4
P5
P6
P7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
CP
GND
SF00834
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V
±
10%, T
amb
= 0
°
C to +70
°
C
N74F269N
PKG DWG #
24-Pin Plastic Slim DIP (300mil)
SOT222-1
24-Pin Plastic SOL
N74F269D
SOT137-1
24-Pin Plastic SSOP type II
N74F269DB
SOT340-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
P0 - P7
Parallel Data inputs
1.0/1.0
PE
Parallel Enable input (active Low)
1.0/1.0
U/D
Up/Down count control input
1.0/1.0
CEP
Count Enable Parallel input (active Low)
1.0/1.0
CET
Count Enable Trickle input (active Low)
1.0/1.0
CP
Clock input
1.0/1.0
TC
Terminal Count output (active Low)
50/33
1.0mA/20mA
Q0 - Q7
NOTE:
One (1.0) FAST Unit Load is defined as: 20
μ
A in the High state and 0.6mA in the Low state.
Flip-flop outputs
50/33
1.0mA/20mA
相關(guān)PDF資料
PDF描述
74F269SPC 8-Bit Bidirectional Binary Counter
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74F269SPC 功能描述:計(jì)數(shù)器 IC 8-Bit Bidir Bin Ctr RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel
74F269SPC_Q 功能描述:計(jì)數(shù)器 IC 8-Bit Bidir Bin Ctr RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel
74F27 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Triple 3-Input NOR Gate
74F27 WAF 制造商:Fairchild Semiconductor Corporation 功能描述:
74F273 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Octal D Flip-Flop
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