ST7282 查看數據表（PDF） - STMicroelectronics
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ST7282 Datasheet PDF : 23 Pages
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ST7282A5 - ST7282B5 - ROM FROM EPROM
1.2.3 Electrical Characteristics
The values given in the specifications of dedicated functions are generally not applicable for chips. There-
fore, only the limits listed below are valid for the product. T = -40 ... +85°C, VDD - VSS = 5V unless otherwise
specified.
PARAMETER
Supply voltage
Supply current Run Mode
SYMBOL
VDD
IDD
Supply current Wait Mode
IDD
Supply current slow wait mode IDD
Supply current halt mode
IDD
Supply current Reset Mode
IDD
Display voltage
Supply voltage differences
(VDD, VDDP, VDDA)
(VSS, VSSP, VSSA)
OSCILLATOR:
Input/output cap Cin, Cout
Oscillation frequency 1)
Built up time 2)
VLCD
VD
fOSC
tBU
RESET:
Input current 3)
Input current 4)
Input current 5)
Input voltage high
Input voltage low
POWER-ON RESET
Supply rise time
Supply recovery time 6)
Trigger level on
Trigger level off
RDS FILTER:
Center frequency
3dB Bandwith
Gain
Attenuation
-IR
IR
IR
VR
VR
tr
trec
Vtlon
Vtloff
fc
BW
G
A
Input impedance
RI
Load impedance
RL
MPX input signal
VIN
Family Issuer Ref. Chrono
97115
ST7
PG-RO
7282A5B5
CONDITION
fOSC=8.55MHz
no output load
fOSC=8.55MHz
WD, Timer, LCD active
no output load
no output load
VRESET=VSS
f=8.55MHz
VDD = 4.5V
VDD=5.0V
C1=C2=22pF
Crystal
VR=VSS
VR=VDD
VR=VDD
10%-90%
Vin = 3mVRMS
57 KHz, Vin = 3mVRMS
∆f = ±4 KHz
f = 38 KHz
f = 67 KHz
March 26, 1997
MIN
4.5
-
-
-
-
-
VDD
-
TYP
MAX
-
5.5
10
20
3
5
0.7
2
-
100
10
15
-
7
-
50
UNIT
V
mA
mA
mA
µA
mA
V
mV
9.00
8.55
8.55
8.55
-
8
20
pF
MHz
ms
+50
+100
µA
-
+10
+20
µA
-
-
1
mA
-
-
-
V
0.7VDD
-
0.2VDD
V
.01
-
10
ms
10
-
-
ms
1.4
.-
-
V
-
-
3
V
56.5
57
57.5
KHz
2.5
3
3.5
KHz
18
20
22
dB
18
22
-
dB
50
80
-
dB
35
50
-
dB
100
160
200
KΩ
1
-
-
MΩ
170
250
600
mVRMS
Previous Ref
Edition
Target C
Page 4/23
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