C505L Datasheet, PDF (1/2 Pages) Siemens Semiconductor Group – First 8051Microcontroller with On-Chip LCD

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C505L
First 8051 Microcontroller
with On-Chip LCD
The C505L enhances the C500
family of 8-bit Microcontrollers
by a new member which provides
on-chip LCD.
The device provides 32 KByte of
OTP, 512 Bytes of RAM, LCD,
an asynchronous/synchronous
serial interface and a highly
accurate 10-bit ADC with a 6 µs
conversion time integrated
on-chip.
Typical applications for the C505L
are electricity meters, utility
meters, intelligent terminals and
controllers. This device has several
power saving modes, including
one in which the on-chip RTC is
functioning with a typical power
consumption of 50 µA at 3 V.
• ^{Enhanced 8-Bit C500-CPU –}
fully software/toolset compati-
ble to standard 80C51/80C52
Microcontrollers
• ^{300 ns instruction cycle time}
at 20 MHz CPU clock without
clock prescaler
• ^{Eight 16 Bit datapointers for}
indirect addressing of program
and data memory
• ^{Supports external address}
range up to 64 KByte program
and data memory
• ^{Full duplex serial interface with}
asynchronous and synchronous
modes and programmable bau-
drate generator
• ^{32 KByte On-chip OTP memory}
(C505L-4E only)
• ^{256 Byte On-chip RAM}
• ^{256 Byte On-chip XRAM}
• ^{Five 8-bit and one 6-bit digital}
I/O ports (Port 5 with 6 bits
only)
• ^{Three 16-bit timers/counters}
• ^{128-segment LCD controller}
– ¹/4 duty cycle drive
– 4 row and 32 column outputs
– On-chip programmable
reference voltage generation
– 20 dedicated LCD output lines
(4 rows + 16 columns)
– Option to switch 16 LCD
output lines for digital I/O
(2 sets of 8 lines each)
• ^{Real-time clock}
– 47-bit digital clock counter
(40 bits readable)
– External crystal oscillator
of frequency 32.768 KHz
required
• ^{Full duplex serial interface}
with programmable baudrate
generator (USART)
• ^{10-bit A/D converter with 8}
multiplexed inputs
• ^{6 µs conversion time}
• ^{Twelve interrupt sources with}
four priority levels
• ^{On-chip emulation support logic}
(Enhanced Hooks)
• ^{Programmable 15-bit}
watchdog timer
• ^{Oscillator watchdog}
• ^{Fast power on reset}
• ^{Power saving modes}
• ^{P-MQFP-80 package}
• ^{Temperature ranges:}
SAB-C505L TA = 0 to 70°C
SAF-C505L TA = –40 to 85°C