Holtek BS66F340 - Page 23

Rev. 1.60 22 August 20, 2019 Rev. 1.60 23 August 20, 2019
BS66F340/BS66F350/BS66F360/BS66F370
Touch A/D Flash MCU with LED Driver
BS66F340/BS66F350/BS66F360/BS66F370
Touch A/D Flash MCU with LED Driver
Pad Name Function OPT I/T O/T Description
PD7/KEY20
PD7
PDPU
PDS1
ST CMOS General purpose I/O. Register enabled pull-up.
KEY20 PDS1 AN — Touch key input
PE0/KEY21
PE0
PEPU
PES0
ST CMOS General purpose I/O. Register enabled pull-up.
KEY21 PES0 AN — Touch key input
PE1/KEY22
PE1
PEPU
PES0
ST CMOS General purpose I/O. Register enabled pull-up.
KEY22 PES0 AN — Touch key input
PE2/STPI/
STP/KEY23
PE2
PEPU
PES0
ST CMOS General purpose I/O. Register enabled pull-up.
STPI
PES0
IFS
ST — STM capture input
STP PES0 — CMOS STM output
KEY23 PES0 AN — Touch key input
PE3/STPI/
STPB/KEY24
PE3
PEPU
PES0
ST CMOS General purpose I/O. Register enabled pull-up.
STPI
PES0
IFS
ST — STM capture input
STPB PES0 — CMOS STM inverted output
KEY24 PES0 AN — Touch key input
PE4/OSC1
PE4
PEPU
PES1
ST CMOS General purpose I/O. Register enabled pull-up.
OSC1 PES1 HXT — HXT oscillator pin
PE5/CTCK1/
OSC2
PE5
PEPU
PES1
ST CMOS General purpose I/O. Register enabled pull-up.
CTCK1 PES1 ST — CTM1 clock input
OSC2 PES1 — HXT HXT oscillator pin
PE6/CTP1/
KEY25
PE6
PEPU
PES1
ST CMOS General purpose I/O. Register enabled pull-up.
CTP1 PES1 — CMOS CTM1 output
KEY25 PES1 AN — Touch key input
PE7/CTP1B/
KEY26
PE7
PEPU
PES1
ST CMOS General purpose I/O. Register enabled pull-up.
CTP1B PES1 — CMOS CTM1 inverted output
KEY26 PES1 AN — Touch key input
PF0/KEY27
PF0
PFPU
PFS0
ST CMOS General purpose I/O. Register enabled pull-up.
KEY27 PFS0 AN — Touch key input
PF1/KEY28
PF1
PFPU
PFS0
ST CMOS General purpose I/O. Register enabled pull-up.
KEY28 PFS0 AN — Touch key input
PF2~PF5 PFn PFPU ST CMOS General purpose I/O. Register enabled pull-up.
VDD VDD — PWR — Positive power supply
VSS VSS — PWR — Negative power supply, ground.
Legend: I/T: Input type; O/T: Output type;
OPT: Optional by register option; PWR: Power;
ST: Schmitt Trigger input; AN: Analog signal;
CMOS: CMOS output; NMOS: NMOS output;
HXT: High frequency crystal oscillator;
LXT: Low frequency crystal oscillator