Holtek BS82B12A-3 - Characteristics

Rev. 1.20 20 January 23, 2015 Rev. 1.20 21 January 23, 2015
BS82B12A-3/BS82C16A-3/BS82D20A-3
Touch Key 8-Bit Flash MCU with LED/LCD Driver
BS82B12A-3/BS82C16A-3/BS82D20A-3
Touch Key 8-Bit Flash MCU with LED/LCD Driver
Symbol Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Conditions
R
PH
Pull-high Resistance for I/O
Ports
3V — 20 60 100 kΩ
5V — 10 30 50 kΩ
V
BG
Bandgap Reference with Buffer
Voltage
— — -3% 1.09 +3% V
A.C. Characteristics
Ta=25°C
Symbol Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Conditions
f
SYS
System Clock (HIRC) 3V/5V Ta=25°C
-2% 8 +2% MHz
-2% 12 +2% MHz
-2% 16 +2% MHz
t
TIMER
Timer Input Pulse Width — — 0.3 — — μs
f
LIRC
System Clock (32kHz) 5V Ta = 25°C -10% 32 +10% kHz
f
LXT
System Clock (LXT) — — — 32768 — Hz
t
INT
Interrupt Pulse Width — — 1 5 10 μs
t
LVR
Low Voltage Width to Reset — — 120 240 480 μs
t
LVD
Low Voltage Width to Interrupt — — 60 120 240 μs
t
LVDS
LVDO stable time — — — — 15 μs
t
EERD
EEPROM Read Time — — 1 2 4 t
SYS
t
EEWR
EEPROM Write Time — — 1 2 4 ms
t
RSTD
System Reset Delay Time
(Power on reset, LVR reset,
WDT S/W reset (WDTC))
— — 25 50 100 ms
System Reset Delay Time
(WDT normal reset)
— — 8.3 16.7 33.3 ms
t
SST
System Start-up Timer Period
(Wake-up from HALT)
—
f
SYS
=LXT 1024 — —
t
SYS
f
SYS
=HIRC 16 — —
f
SYS
=LIRC 2 — —
System Start-up Timer Period
(Wake-up from HALT, f
SYS
on at
HALT state)
— — 2 — —
Note: t
SYS
= 1/f
SYS