UPD784915B Datasheet, PDF (1/86 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLERS

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD784915B, 784916B
16-BIT SINGLE-CHIP MICROCONTROLLERS
DESCRIPTION
The µPD784915B, 784916B are members of the NEC 78K/IV Series of microcontrollers equipped with a high-
speed 16-bit CPU and are versions with improved electrical characteristics of the µPD784915A, 784916A of the
µPD784915 Subseries.
This series contains many peripheral hardware units ideal for VCR control, such as a multi-function timer unit
(super timer unit) suitable for software servo control and VCR analog circuits.
A one-time PROM version of the µPD784916B, the µPD78P4916, is also available.
Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before
designing.
µPD784915 Subseries User’s Manual - Hardware: U10444E
78K/IV Series User’s Manual - Instruction: U10905E
FEATURES
• High instruction execution speed realized by 16-bit CPU core
• Minimum instruction execution time: 250 ns (with 8-MHz internal clock)
• High internal memory capacity
Part Number
µPD784915B
µPD784916B
ROM
49152 bytes
63488 bytes
RAM
1280 bytes
• VCR analog circuits conforming to VHS Standard
• CTL amplifier
• RECCTL driver (rewritable)
• CFG amplifier
• DFG amplifier
• DPG comparator
• DPFG separation circuit (ternary separation circuit)
• Reel FG comparator (2 channels)
• CSYNC comparator
• Timer unit (super timer unit) for servo control
• Serial interface: 2 channels (3-wire serial I/O)
• A/D converter: 12 channels (conversion time: 10 µs)
• Low-frequency oscillation mode: main system clock frequency = internal clock frequency
• Low-power dissipation mode: CPU can operate with a subsystem clock.
• Supply voltage range: VDD = 2.7 to 5.5 V
• Hardware watch function: watch operation at low voltage (VDD = 2.7 V (MIN.)) and low current
APPLICATIONS
Control system/servo/timer of VCR
Unless mentioned otherwise, the µPD784916B is described as the representative product.
The information in this document is subject to change without notice
Document No. U13118EJ1V0DS00 (1st edition)
Date Published January 1998 N CP(K)
Printed in Japan
©
11999986