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
PB015605-1007 Page 2 of 5
ZLP12840 OTP MCU
Block Diagram
Figure 1 displays the functional block diagram.
Pin-Outs and Pin Directions
Figure 2 displays the 20-pin PDIP, SOIC, and SSOP pin assignments.
Figure 1. Functional Block Diagram
UART and 2 Comparators
Watchdog
Timer BRG Timer
Counter/Timers
8-bit/16-bit
High/Low Power-On
IR Learning
Z8
®
LXM
Core
Register File
Banks 0–3
4 x 256 x 8
Register File
Banks D and F
2 x 16 x 8
Voltage Detect Reset
Amplifier
Register/Peripheral Bus
P30/PRef1
32K/64K/96K/
Bus
128K x 8
OTP ROM
and
Figure 2. 20-Pin PDIP/SOIC/SSOP Pin Assignment
P24
P23
P22
P21
P20
VSS
P01
P00/Pref1/P30
P36
P34
P25
P26
P27
P07
VDD
XTAL2
XTAL1
P31
P32
P33
120
10 11
219
318
417
516
615
714
813
912
20-Pin
PDIP/SOIC/SSOP
PB015605-1007 Page 3 of 5
ZLP12840 OTP MCU
Figure 3 displays the 28-pin PDIP, SOIC, and SSOP pin assignments.
Applications and Support Tools
The following development tools are available for programming and debugging this device:
•ZCRMZNICE01ZEMG—Crimzon In-Circuit Emulator
•ZCRMZNICE01ZACG—20-pin Accessory Kit to the ZCRMZNICE01ZEMG
•ZCRMZNICE02ZACG—40-/48-pin Accessory Kit to the ZCRMZNICE01ZEMG
•ZCRMZN00100KITG—Crimzon IR Development Kit
•Zilog Developer Studio II (ZDSII), available for download at www.zilog.com
Ordering Information
Each of the parts listed in table is available in a lead-free package that conforms to responsible environ-
mental standards. To order a leaded package, contact Zilog Customer Service. For more information
regarding ordering, contact your local Zilog sales office. Zilog web site, www.zilog.com, lists all regional
offices and provides additional product information.
Figure 3. 28-Pin PDIP/SOIC/SSOP Pin Assignment
1
14
28-Pin
2
3
4
5
6
7
8
9
10
11
12
13
28
15
27
26
25
24
23
22
21
20
19
18
17
16
P24
P23
P22
P21
P20
P03
VSS
P02
P01
P00
Pref1/P30
P36
P37
P35
P25
P26
P27
P04
P05
P06
P07
VDD
XTAL2
XTAL1
P31
P32
P33
P34
PDIP/SOIC/SSOP
Part Number Description
ZLP12840H2828G 28-pin SSOP 128K OTP
ZLP12840S2828G 28-pin SOIC 128K OTP
ZLP12840P2828G 28-pin PDIP 128K OTP
ZLP12840H2028G 20-pin SSOP 128K OTP
ZLP12840S2028G 20-pin SOIC 128K OTP
ZLP12840P2028G 20-pin PDIP 128K OTP
PB015605-1007 Page 4 of 5
ZLP12840 OTP MCU
ZLP12840H2896G 28-pin SSOP 96K OTP
ZLP12840S2896G 28-pin SOIC 96K OTP
ZLP12840P2896G 28-pin PDIP 96K OTP
ZLP12840H2096G 20-pin SSOP 96K OTP
ZLP12840S2096G 20-pin SOIC 96K OTP
ZLP12840P2096G 20-pin PDIP 96K OTP
ZLP12840H2864G 28-pin SSOP 64K OTP
ZLP12840S2864G 28-pin SOIC 64K OTP
ZLP12840P2864G 28-pin PDIP 64K OTP
ZLP12840H2064G 20-pin SSOP 64K OTP
ZLP12840S2064G 20-pin SOIC 64K OTP
ZLP12840P2064G 20-pin PDIP 64K OTP
ZLP12840H2832G 28-pin SSOP 32K OTP
ZLP12840S2832G 28-pin SOIC 32K OTP
ZLP12840P2832G 28-pin PDIP 32K OTP
ZLP12840H2032G 20-pin SSOP 32K OTP
ZLP12840S2032G 20-pin SOIC 32K OTP
ZLP12840P2032G 20-pin PDIP 32K OTP
ZCRMZNICE01ZEMG Crimzon In-Circuit Emulator
Part Number Description
PB015605-1007 Page 5 of 5
ZLP12840 OTP MCU
DO NOT USE IN LIFE SUPPORT
LIFE SUPPORT POLICY
ZILOG'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE
SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF
THE PRESIDENT AND GENERAL COUNSEL OF ZILOG CORPORATION.
As used herein
Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b)
support or sustain life and whose failure to perform when properly used in accordance with instructions for
use provided in the labeling can be reasonably expected to result in a significant injury to the user. A
critical component is any component in a life support device or system whose failure to perform can be
reasonably expected to cause the failure of the life support device or system or to affect its safety or
effectiveness.
Document Disclaimer
©2007 by Zilog, Inc. All rights reserved. Information in this publication concerning the devices,
applications, or technology described is intended to suggest possible uses and may be superseded. ZILOG,
INC. DOES NOT ASSUME LIABILITY FOR OR PROVIDE A REPRESENTATION OF ACCURACY
OF THE INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED IN THIS DOCUMENT.
ZILOG ALSO DOES NOT ASSUME LIABILITY FOR INTELLECTUAL PROPERTY
INFRINGEMENT RELATED IN ANY MANNER TO USE OF INFORMATION, DEVICES, OR
TECHNOLOGY DESCRIBED HEREIN OR OTHERWISE. The information contained within this
document has been verified according to the general principles of electrical and mechanical engineering.
Z8, Z8 Encore!, Z8 Encore! XP, Z8 Encore! MC, Crimzon, eZ80, and ZNEO are trademarks or registered
trademarks of Zilog, Inc. All other product or service names are the property of their respective owners.
Warning:
