BS2824 Holtek Semiconductor Inc., BS2824 Datasheet - Page 5

• Manufacturer Part Number: BS2824
• Description: Touch Key Mcu
• Manufacturer: Holtek Semiconductor Inc.

Rev. 1.00
KETY0~KEY3
PB0/SCOM0
PB1/SCOM1
PB2/SCOM2
PB3/SCOM3
BS2854
PA5/OSC2
PA6/OSC1
PC0, PC1,
Pin Name
PB4, PB5
PC6, PC7
PD0, PD1
PA0/PFD
PA1/PFD
PA7/RES
PA2/TC0
PA3/INT
CREF
SCD
VDD
VSS
PA4
Function
SCOM0
SCOM1
SCOM2
SCOM3
OSC2
OSC1
Keyn
RES
SCD
VDD
PA0
PFD
PA1
PFD
PA2
TC0
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PBn
PCn
PDn
Cref
VSS
INT
SCOMC
SCOMC
SCOMC
SCOMC
CTRL0
CTRL0
PAWK
PAWK
PAWK
PAWK
PAWK
PAWK
PAWK
PAWK
PCPU
PDPU
PAPU
PAPU
PAPU
PAPU
PAPU
PAPU
PAPU
PBPU
PBPU
PBPU
PBPU
PBPU
OPT
CO
CO
CO
PWR
PWR
OSC
SP
SP
I/T
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
CMOS General purpose I/O. Register enabled pull-up and wake-up.
CMOS PFD output
CMOS General purpose I/O. Register enabled pull-up and wake-up.
CMOS PFD output
CMOS General purpose I/O. Register enabled pull-up and wake-up.
CMOS General purpose I/O. Register enabled pull-up and wake-up.
CMOS General purpose I/O. Register enabled pull-up and wake-up.
CMOS General purpose I/O. Register enabled pull-up and wake-up.
CMOS General purpose I/O. Register enabled pull-up and wake-up.
NMOS General purpose I/O. Register enabled wake-up.
CMOS General purpose I/O. Register enabled pull-up.
SCOM Software controlled 1/2 bias LCD COM
CMOS General purpose I/O. Register enabled pull-up.
SCOM Software controlled 1/2 bias LCD COM
CMOS General purpose I/O. Register enabled pull-up.
SCOM Software controlled 1/2 bias LCD COM
CMOS General purpose I/O. Register enabled pull-up.
SCOM Software controlled 1/2 bias LCD COM
CMOS General purpose I/O. Register enabled pull-up.
CMOS General purpose I/O. Register enabled pull-up.
CMOS General purpose I/O. Register enabled pull-up.
NMOS Serial communication I/O line with pull-high
OSC
O/T
5
BS2824/BS2854/BS2868
Touch pad inputs
Touch key reference capacitor
External Timer 0 clock input
External interrupt input
Oscillator pin
Oscillator pin
Reset input
Power supply
Ground
Touch Key MCU
Description
January 27, 2010