BS85B12-3 HOLTEK [Holtek Semiconductor Inc], BS85B12-3 Datasheet - Page 19

• Manufacturer Part Number: BS85B12-3
• Description: Touch Key Flash Type 8-Bit MCU with LCD/LED Driver
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

BS85B12-3/BS85C20-3
Touch Key Flash MCU with LCD/LED Driver
A.C. Characteristics
Note:
Rev. 1.00
f
f
f
f
t
t
t
t
t
t
t
Symbol
CPU
HIRC
LIRC
TIMER
INT
LVR
LVD
LVDS
EERD
EEWR
SST
1. t
2. To maintain the accuracy of the internal HIRC oscillator frequency, a 0.1 F decoupling capacitor should be
connected between VDD and VSS and located as close to the device as possible.
SYS
Operating Clock
System Clock
(HIRC)
System Clock (LIRC)
Timer Input Pin Frequency
Interrupt Pulse Width
Low Voltage Width to Reset
Low Voltage Width to Interrupt
LVDO Stable Time
EEPROM Read Time
EEPROM Write Time
System Start-up Timer Period
(Wake-up from HALT)
=1/f
SYS
Parameter
3V/5V Ta=25 C
3V/5V Ta=25 C
3V/5V Ta=0~70 C
3V/5V Ta=0~70 C
2.5V~
4.0V
3.0V~
5.5V
2.7V~
4.0V
3.0V~
5.5V
4.5V~
5.5V
2.5V~
4.0V
3.0V~
5.5V
2.7V~
4.0V
3.0V~
5.5V
4.5V~
5.5V
2.2V~
5.5V
V
5V
5V
5V
DD
Test Conditions
V
2.7V~5.5V
4.5V~5.5V
Ta=25 C
Ta=0~70 C
Ta=0~70 C
Ta=0~70 C
Ta=0~70 C
Ta=0~70 C
Ta=0~70 C
Ta= 40 C~85 C
Ta= 40 C~85 C
Ta= 40 C~85 C
Ta= 40 C~85 C
Ta= 40 C~85 C
Ta= 40 C~+85 C
f
f
SYS
SYS
LVR
13
=HIRC
=LIRC
~5.5V
Conditions
Min.
180
DC
DC
DC
12%
13%
10%
50%
60
15
2%
2%
2%
4%
4%
4%
9%
5%
9%
5%
5%
8%
8%
7%
1
15~16
Typ.
120
240
1~2
12
16
12
16
12
12
16
12
12
16
32
32
8
8
8
8
8
8
2
2
February 1, 2011
+12%
+11%
+12%
+11%
+10%
+60%
Max.
+2%
+2%
+2%
+3%
+3%
+3%
+6%
+5%
+5%
+6%
+5%
+5%
240
360
12
16
8
1
4
4
Ta=25 C
Unit
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
kHz
kHz
f
t
ms
t
SYS
SYS
SYS
s
s
s
s