LC87F2924B Datasheet, PDF (24/28 Pages) Sanyo Semicon Device – CMOS IC FROM 26K byte, RAM 768 byte on-chip 8-bit 1-chip Microcontroller

LC87F2924B
F-ROM Programming Characteristics at Ta = -10°C to +55°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Onboard
programming
Symbol
IDDFW(1)
Pin/Remarks
Conditions
VDD1
• Without CPU current
VDD[V]
min
3.0 to 5.5
Specification
typ
max
unit
5
10 mA
current
Programming
time
tFW(1)
tFW(2)
• Erasing
• Programming
3.0 to 5.5
20
30 ms
40
60
μs
UART (Full Duplex) Operating Conditions at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Symbol
Pin/Remarks
Conditions
VDD[V]
min
Specification
typ
max
unit
Transfer rate
UBR
UTX(P20),
URX(P21)
2.2 to 5.5
16/3
8192/3 tCYC
Data length: 7, 8, and 9 bits (LSB first)
Stop bits:
1 bit (2-bit in continuous data transmission)
Parity bits:
None
Example of Continuous 8-bit Data Transmission Mode Processing (first transmit data=55H)
Start bit
Start of
transmission
Transmit data (LSB first)
Stop bit
End of
transmission
UBR
Example of Continuous 8-bit Data Reception Mode Processing (first receive data=55H)
Start bit
Start of
reception
Receive data (LSB first)
Stop bit
End of
reception
UBR
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