Z8051 FAMILY ADVANTAGES
High-Performance, Low-Cost
Architecture
Industry-Standard 8051-Compatible
Core
Industry-Wide Popularity
Numerous Third-Party Tools Available
Zilog’s Continuing Commitment to
Supporting Our Customers
Zilog’s Z51F3220 MCU
An Industry-Standard 8-Bit Embedded Control Solution
Overview
The Z51F3220 MCU, a member of Zilog’s new Z8051 product family, is an advanced CMOS 8-bit microcontroller
with 32KB of Flash memory. This powerful microcontroller provides a highly flexible and cost-effective solution to
many embedded control applications, including battery management, thermostats, and control panels for
appliances. With 1KB of RAM, two clocks per machine cycle, general-purpose I/O, multiple timers (1x8-bit, 2x8-
bit, 1x16-bit and 2x16-bit), plus PWM, watchdog and watch timers, UART, buzzer port, I2C, on-chip POR, 12-bit
ADC and much more, the Z51F3220 MCU is your 32K Flash solution for 8051 embedded application
development.
Z51F3220 MCU Block Diagram
Zilog’s Z8051 Family of MCUS
Z51F3220 Product Brief PB023902-0312
Zilog’s Z8051 Family of MCUS
Z51F3220
Product Brief PB023903-0312
Zilog’s Z8051 Family of MCUs
2
EMBEDDED CONTROL SOLUTIONS
KEY FEATURES
High-Performance 8-bit CISC Core
12 to 16 12-Bit ADC Channels
LCD Driver (21 segments/8 common)
Internal RC Oscillator for Lower
Component Count
Timers with Multiple 8- and 16-bit
Capture, Counter, Compare and PWM
Modes
Z51F3220 MCU Feature Set
High-Performance 8-Bit CISC Core (2 clocks per machine cycle)
32KB On-Chip Flash Memory
256 Bytes IRAM
768 Bytes XRAM
Operating Frequency: 0–16 MHz
Operating Voltage: 1.8V–5.5V
Internal 16 MHz RC Oscillator with Programmable Clock Divider
Power-Saving Modes (Idle, Stop)
Configurable Timers
o Timer/Counter (8 bits x 1 channel, 16 bits by 2 channels, 8 bits x 2 channels or 16 bits by 1
channel)
o 8-bit Capture and Compare PWM Timer
o Two 16-Bit Capture and Compare PWM Timers
o Two 8-Bit or one 16-bit Counter/Capture Timers or 10-Bit PWM in 3 Complementary Pairs with
Programmable Delay
o Programmable Pulse Generator
o Basic Interval Timer
Watchdog Timer
Watch Timer
Dedicated SPI Port
2 Universal Asynchronous Receivers/Transmitters (UART/SPI/I2C)
LCD Driver (21 segments/8 common)
Buzzer Driver Port
42 GPIO pins, configurable as push-pull, pull-up or open-drain
o 9 general-purpose pins
o 33 shared LCD pins
33 GPIO LCD pins
12-Bit ADC with 12 to 16 Input Channels
Multiple Interrupts from Multiple Sources via Priority Setting
Programmable Brown-Out Detector
Operating Temperature: –40°C to 85°C
Packages: 44-pin MQFP, 32-Pin SOP
Lead-Free Manufacture
Zilog’s Z8051 Family of MCUs: flexible, industry-standard MCU solutions backed by Zilog’s long-term
commitment to supporting our customers.
Zilog’s Z8051 Family of MCUs
3
EMBEDDED CONTROL SOLUTIONS
APPLICATIONS
Battery Management
Motor Control
Thermostats, Appliance Control
Panels, Digital Clocks
Medical Devices
Embedded Controls Monitoring
LED Lighting Control
Ordering Information
The Z51F3220 MCU is offered in the following packages. Construct your part number based on the specific
package you wish to order.
Order the Z51F3220 MCU separately using part numbers from the above table. For complete ordering
information, please refer to the Z51F3220 MCU Product Specification (PS0299).
For more information about Zilog’s Z8051 family of products, ordering or product collateral, please consult
your local Zilog distributor or representative. You can find sales office locations and the most current product
information on our website; please visit us at www.zilog.com.
Documentation
For a complete listing of all available application notes, data sheets, user manuals, and sample libraries,
please visit us at www.zilog.com.
Document Number Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . .
PS0299 Z51F3220 Product Specification
Related Products
Zilog carries a number of products based on the Z8051 Core to suit your application requirements. For more
information about the following products, please visit us at www.zilog.com.
Z51F3220 MCU
Part Number ROM IRAM XRAM Package
Z51F3220FNX 32 KB 256b 768b 44-pin MQFP
Z51F3220SKX 32 KB 256b 768b 32-pin SOP
Product Name Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .
. . . . . . .
. . . . .
Z51F0410
MCU Z8051 core with 4KB Flash,
256b RAM
and
256b EEPROM
in
a
10-pin SSOP package
Z51F0811 MCU Z8051 core with 8KB Flash, 256b RAM and 512b EEPROM in
16-, 20- & 28-pin TSSOP and 32-pin QFN packages
Z51F3221 MCU Z8051 core with 32
K
B Flash, 1.25KB RAM in 64-
& 80-pin
LQFP packages
Z51F6412 MCU Z8051 core with 64KB Flash, 3.25KB RAM in 64- & 80-pin
LQFP packages
Zilog’s Z8051 Family of MCUs
4
EMBEDDED CONTROL SOLUTIONS
Warning: DO NOT USE THIS PRODUCT IN LIFE SUPPORT SYSTEMS.
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
©2012 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.
Z8051 is a trademark or registered trademark of Zilog, Inc. All other product or service names are the property of their respective
owners.
EMBEDDED IN LIFE
WWW.ZILOG.COM | 408-457-9000
Zilog and the Zilog logo are registered trademarks of
Zilog, Inc. in the United States and in other countries.
