BS85B12-3 HOLTEK [Holtek Semiconductor Inc], BS85B12-3 Datasheet - Page 12

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BS85B12-3

Manufacturer Part Number
BS85B12-3
Description
Touch Key Flash Type 8-Bit MCU with LCD/LED Driver
Manufacturer
HOLTEK [Holtek Semiconductor Inc]
Datasheet
Note:
Rev. 1.00
PC4/TCK0/
INT0/TP1B_2/
SSEG4/KEY5
PC5/TCK1/
INT1/TP1A/
SSEG5/KEY6
PC6/PCK/
SSEG6/KEY7
PC7/PINT/
SSEG7/KEY8
KEY9
KEY10
KEY11
KEY12
VDD
VSS
Pin Name
I/T: Input type
O/T: Output type
Register Select: Indicates register which selects alternative function
PWR: Power
ST: Schmitt Trigger input
CMOS: CMOS output
NMOS: NMOS output
LCD: LCD COM or SEG Vbias output
NS: Non-standard input or output
The pins in the table reflect that of the package with the largest number of pins. For this reason not all pins may
exist on all package types.
PC4
TCK0
INT0
TP1B_2
SSEG4
KEY5
PC5
TCK1
INT1
TP1A
SSEG5
KEY6
PC6
PCK
SSEG6
KEY7
PC7
PINT
SSEG7
KEY8
KEY9
KEY10
KEY11
KEY12
VDD
VSS
Function
Touch Key Flash MCU with LCD/LED Driver
Register
SLCDCn
TKMnC1
SLCDCn
TKMnC1
SLCDCn
TKMnC1
SLCDCn
TKMnC1
TM0C0
TMPCn
TM1C0
TMPCn
SIMC0
Select
INTC0
INTC0
PCPU
PCPU
PCPU
PCPU
MFI3
PWR
PWR
NS
NS
NS
NS
NS
NS
NS
NS
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
I/T
CMOS General purpose I/O. Register enabled pull-up.
CMOS TM1 I/O
CMOS General purpose I/O. Register enabled pull-up.
CMOS TM1 I/O
CMOS General purpose I/O. Register enabled pull-up.
CMOS Peripheral clock output
CMOS General purpose I/O. Register enabled pull-up.
LCD
LCD
LCD
LCD
O/T
6
Timer Module 0 input
External interrupt 0 input
Software controlled LCD SEG
Touch key input
Timer Module 1 input
External interrupt 1 input
Software controlled LCD SEG
Touch key input
Software controlled LCD SEG
Touch key input
Peripheral interrupt input
Software controlled LCD SEG
Touch key input
Touch key input
Touch key input
Touch key input
Touch key input
Power supply
Ground
BS85B12-3/BS85C20-3
Description
February 1, 2011

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