Copyright ©2007 by Zilog
®
, Inc. All rights reserved.
www.zilog.com
Overview
Zilog’s ZLP12840 OTP MCU is a member of the
Crimzon
®
MCU family of infrared microcontrol-
lers. With 1 KB of general-purpose RAM and up to
128 KB of OTP, Zilog’s CMOS microcontrollers
offer fast executing, efficient use of memory,
sophisticated interrupts, input/output bit manipula-
tion capabilities, automated pulse generation/
reception, and internal key-scan pull-up transistors.
Product Block Diagram
Features
Key features of ZLP12840 OTP MCU include:
• Low power consumption
• Three standby modes
– STOP—2
μA (typical)
– HALT—0.8 mA (typical)
– Low-Voltage Reset
• Infrared dedicated timers
– Capture and transmit, 8- and 16-bit
– 8-bit timer with full duplex UART
• Twenty priority interrupt sources
– Three from UART Tx, UART Rx, UART
BRG
– Two assigned to T8, T16 time-out and
capture
– One low-voltage detection interrupt
– Fourteen from Stop Mode Recovery
sources P20–P27, P30–P33, P00, and P04
• High and Low voltage detection with Flag IRQ
(Low voltage only)
• Programmable Watchdog Timer
• Power-On Reset circuits
• OTP-selectable pull-up transistors on Port 0 and
Port 2
• Two comparators
• Infrared learning amplification comparator
• Up to 24 GPIO
– Port 0: 0–3 (with pull-up option)
– Port 0: 4–7 (with pull-up option)
– Port 2: 0–7 (with pull-up option)
– Port 3: 0–7
• Flexible Stop Mode Recovery
• Compatible with Zilog’s Z86L98, ZLP32300,
ZLR32300, and ZLR64400 product families.
Power-On
Reset
32/64/96/128K
OTP ROM
T8 Timer
Capture and
Transmit
High Battery
Voltage
Detection
Z8
®
LXM
Core
T16 Timer
Capture and
Transmit
Low Battery
Voltage
Detection
8-Bit Timer w/
UART
2 Comparators
1 KB RAM
Watchdog
Timer
Dedicated IR
Amplifier
Port 0
8 I/O
Port 2
8 I/O
Port 3
8 I/O
Crimzon
®
Infrared Microcontrollers
PB015605-1007
ZLP12840 OTP MCU
with Learning Amplification
Product Brief
