DATA SHEET
MOS INTEGRATED CIRCUIT
µPD78F9046
8-BIT SINGLE-CHIP MICROCONTROLLER
DESCRIPTION
The µPD78F9046 is a µPD789046 Subseries product (small-scale package, general-purpose applications) of the
78K/0S Series.
The µPD78F9046 has flash memory in place of the internal ROM of the µPD789046.
Because flash memory allows the program to be written and erased with the device mounted on the target board,
this product is ideal for development trials, small-scale production, or for applications that require frequent upgrades.
Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before
designing.
µPD789046 Subseries User’s Manual:
U13600E
78K/0S Series User’s Manual — Instruction: U11047E
FEATURES
•
•
•
•
Pin-compatible with mask ROM version (except VPP pin)
Flash memory: 16 Kbytes
Internal high-speed RAM: 512 bytes
Minimum instruction execution time can be changed from high-speed (0.4 µs; @5.0-MHz operation with main
system clock) to ultra-low-speed (122 µs: @32.768-kHz operation with subsystem clock)
• I/O ports: 34
• Serial interface: 1 channel
3-wire serial I/O mode/UART mode can be selected
• Timer: 4 channels
• 16-bit timer:
1 channel
• 8-bit timer/event counter: 1 channel
• Watch timer:
1 channel
• Watchdog timer:
1 channel
• Power supply voltage: VDD = 1.8 to 5.5 V
APPLICATIONS
Cordless phones, etc.
ORDERING INFORMATION
Part Number
Package
µPD78F9046GB-8ES
44-pin plastic LQFP (10 × 10)
µPD78F9046GB-8ES-A
44-pin plastic LQFP (10 × 10)
Remark
Products that have the part numbers suffixed by "-A" are lead-free products.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
Document No. U13546EJ1V1DS00 (1st edition)
Date Published August 2005 N CP(K)
Printed in Japan
The mark
shows revised points.
1998, 1999
