参数资料
型号: CS4207-DNZ
厂商: CIRRUS LOGIC INC
元件分类: 消费家电
中文描述: SPECIALTY CONSUMER CIRCUIT, QCC48
封装: 6 X 6 MM, LEAD FREE, MO-229, QFN-48
文件页数: 11/15页
文件大小: 814K
代理商: CS4207-DNZ
SCE5780
2006-01-23
5
Input/Output Circuits
The following two figures show the input and output resis-
tor/diode networks used for ESD protection and to elimi-
nate substrate latch-up caused by input voltage
over/under shoot.
Inputs
Clock I/O
Electrical Characteristics (
over operating temperature)
Parameter
Min.
Typ.
Max.
Units
Conditions
V
CC
4.5
5.0
5.5
V
V
LL
3.0
5.5
V
I
CC (PWR DWN)
4)
100
A
V
CC=VLL=5.0 V, all inputs=0 V or VCC
I
LL (PWR DWN)
4)
50
A
I
CC
2.0
mA
V
CC=5.0 V
I
LL (20 dots/char)
1) 2)
240
345
mA
V
CC=VLL=5.0 V, “#” displayed in 8 digits,
brightness=100%, I
P=100% at 25°C
I
IL
–10
A
V
CC=5.0 V, all inputs=0 V
I
IH
10
A
V
CC=VIN=5.0 V (all inputs)
V
IH
3.5
V
CC=4.5 V to 5.5 V
V
IL
1.5
V
CC=4.5 V to 5.5 V
I
OH (CLK I/O)
–8.9
mA
V
CC=4.5 V, VOH=2.4 V
I
OL (CLK I/O)
1.6
mA
V
CC=4.5 V, VOH=0.4 V
θ
JC-pin
34
°C/W
Internal OSC Frequency
120
347
kHz
V
CC=5.0 V, CLKSEL=1, Prescale= ÷1
External OSC Frequency
120
347
kHz
V
CC=5.0 V, CLKSEL=0, Prescale= ÷1
External OSC Frequency with Prescale
1.92
5.55
MHz
V
CC=5.0 V, CLKSEL=0, Prescale= ÷16
Mux Frequency
3)
375
768
1086
Hz
Notes:
1) Peak current=1.87 x I
LLx ILL varies with VLL Normalized curve, Figure ILL Variance“ (page 11).
2) Unused inputs must be tied high.
3) Mux rate=[OSC Frequency/(64 x 7)].
4) External oscillator must be stopped during power down mode for minimum current.
IDCD5021
GND
1 k
Input
CC
V
IDCD5026
GND
1 k
Input/Output
CC
V
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