參數(shù)資料
型號: HD49235
廠商: Hitachi,Ltd.
英文描述: 16 AMP SPDT MINIATURE POWER RELAY
中文描述: 數(shù)字信號處理器的CD
文件頁數(shù): 6/41頁
文件大小: 192K
代理商: HD49235
HD49235FS
Rev.2, Aug. 1995, page 6 of 41
Pin Description
(cont)
Pin
Polarity
No.
Symbol
Name
I/O*
Connection
Function
H
L
71
TEST3
TEST 3
IU
Open or V
DD
Test pin
72
UCKSL
Microcomputer
clock selection
IU
Microprocessor clock
switching signal input
16.9344
MHz
8.4672
MHz
73
V
DD
(D)
PWM
V
DD
(digital)
Pulse width
modulate
Digital power supply
74
TO
Constant linear velocity (CLV)
control signal for disc motor
75
MON
Motor on
O
Disc-motor-on status detection
output
On
76
MSTOP
Motor stop
TO
CLV phase control signal
77
PW64
Pulse width
64T
O
Microprocessor Brake release signal
78
ROTD
Rotate
direction
O
Microprocessor MSB of PWM pin output, for
monitoring
79
CLVS
CLV status
O
Microprocessor Output indicating normal or
starting mode of CLV control
Normal
Starting
80
Note:
SLOCK
* I—input; O—output; IO—input/output; IU—pulled-up input; TO—three-state output; A—analog pin;
AI—analog input; AO—analog output; XI—oscillator input; XO—oscillator output
Sync lock
O
Microprocessor Disc motor rotation lock signal Lock
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