参数资料
型号: HD3-4702-9Z
厂商: Intersil
文件页数: 2/8页
文件大小: 0K
描述: IC BIT RATE GEN CMOS 16-PDIP
标准包装: 250
类型: 比特率发生器
PLL:
输入: 时钟,晶体
输出: 时钟
电路数: 1
比率 - 输入:输出: 2:1
差分 - 输入:输出: 无/无
频率 - 最大: 1MHz
除法器/乘法器: 是/无
电源电压: 4.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 16-DIP(0.300",7.62mm)
供应商设备封装: 16-PDIP
包装: 管件
2
FN2954.2
August 24, 2006
Pin Description
PIN NUMBER
TYPE
SYMBOL
DESCRIPTION
16
VCC
VCC: Is the +5V power supply pin. A 0.1μF capacitor between pins 16 and 8 is
recommended for decoupling.
8GND
GROUND
5
I
CP
EXTERNAL CLOCK INPUT
4I
ECP
EXTERNAL CLOCK ENABLE: A low signal on this input allows the baud rate to be
generated from the CP input.
7I
IX
CRYSTAL INPUT
6O
OX
CRYSTAL DRIVE OUTPUT
15
I
IM
MULTIPLEXED INPUT
11, 12, 13, 14
I
S0 - S3
BAUD RATE SELECT INPUTS
9
O
CO
CLOCK OUTPUT
1, 2, 3
O
Q0 - Q2
SCAN COUNTER OUTPUTS
10
O
Z
BIT RATE OUTPUT
CLOCK MODES AND INITIALIZATION
IX
ECP
CP
OPERATION
H
L
Clocked from IX
X
L
Clocked from CP
X
H
Continuous Reset
X
L
Reset During 1st CP = High
Time
H = HIGH Level
L = LOW Level
X = Don’t Care
= Clock Pulse
= 1st HIGH Level Clock Pulse after ECP goes LOW
NOTE: Actual output frequency is 16 times the indicated Output
Rate, assuming a clock frequency of 2.4576MHz.
HD-4702
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