4-Bit MCU

 
IC Part No. Memory Type Supply Voltage
(V)
ROM
(Bit)
RAM
(Nibble)
I/P O/P I/O LCD Speech
@6K
Other
Function
Package-Lead Count
EM73A00
MASK 1.6~5.5 24K x 8 128 8 8 5 - - WDT, IR, LVD SOP-28L, TSSOP-28L
EM73PA00
OTP 2.5~5.5 24K x 8 128 8 8 5 - - WDT, IR, LVD SOP-28L, TSSOP-28L
EM73461A
MASK 2.4~3.6 4K x 8 244 4 - 8 32 x 4 - SG, HSC -
EM73P461A
OTP 2.4~3.6 4/8K x 8 244 4 - 8 32 x 4 - SG, HSC QFP-100L
EM73461B
MASK 2.4~3.6 4/8K x 8 244 4 - 8 32 x 4 - WDT, SG, HSC -
EM73866
MASK 2.2~6.0 8K x 8 500 8 - 20* 32 x 4 - WDT, SG, HSC -
EM73P968
OTP 2.2~5.0 16K x 8 2548 4 9 32 52 x 5 - WDT, A/D, SG, HSC, SPI QFP-128L
EM73982
MASK 2.4~5.5 16K x 8 372 4 - 8 40 x 8 4 SG, CDA -
EM73A88A
MASK 2.2~4.8 16K x 8 500 4 - 8 64 x 16 75 WDT, SG, LCDR, PWM / CDA -
EM73PA88A
OTP 2.2~4.8 16K x 8 500 4 - 8 64 x 16 75 WDT, SG, LCDR, PWM / CDA QFP-128/160L
*: Some pins are shared with LCD segment pins. SG: Sound Generator OTP: One Time Programmable
IR-- Infrared Control  DTMF: Dual Tone Multiple Frequency. CDA: Current DA
WDT: Watch Dog Timer  AS: Analog Switch HSC: High Speed Counter
SI: Serial Interface AMP: OPOP Amplifier LCDR: LCD Voltage Regulator
VR: Voltage Regulator DTS: Date Time Stamp
RFO: Resistance to Frequency OSC LVD: Low Voltage Detector
PWM: Pulse Width Modulation HSC: High Speed Counter
  LVR: Low Voltage Reset