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Details, datasheet, quote on part number:UPD784928Y
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Datasheet text preview:
DATA SHEET
µPD784927, 784928, 784927Y, 784928Y
16-BIT SINGLE-CHIP MICROCONTROLLER
MOS INTEGRATED CIRCUIT
DESCRIPTION
The µPD784927 and 784928 are members of the NEC 78K/IV Series of microcontrollers equipped with a highspeed, high-performance 16-bit CPU for VCR software servo control. The µPD784927Y and 784928Y are based on the µPD784928 with the addition of an I2C bus interface compatible with multi-master. They contain many peripheral hardware units ideal for VCR control, such as a multi-function timer unit (super timer unit) for software servo control and VCR analog circuits. Flash memory models, the µPD78F4928 and µPD78F4928Y, are under development. The functions of the µPD784927 is described in detail in the following User's Manual. Be sure to read this manual before designing your system.
µPD784928, 784928Y Subseries User's Manual - Hardware
78K/IV Series User's Manual - Instruction
: U12648E : 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
Item Part Number
µPD784927, 784927Y
96K bytes 2048 bytes
µPD784928, 784928Y
128K bytes 3584 bytes
Internal ROM capacity Internal RAM capacity
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VCR analog circuits conforming to VHS Standard · CTL amplifier · RECCTL driver (rewritable) · CFG amplifier · DFG amplifier · DPG amplifier · Reel FG comparator (2 channels) · CSYNC comparator
· DPFG separation circuit (ternary separation circuit)
· · · · · · · · ·
Timer unit (super timer unit) for servo control Serial interface : 3 channels 3-wire serial I/O : 2 channels I2C bus interface: 1 channel A/D converter: 12 channels (conversion time: 10 µs) Low-frequency oscillation mode: main system clock frequency = internal clock frequency Low-power consumption 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 consumption
Unless otherwise specified, the µPD784927 is treated as the representative model throughout this document.
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 devices/types available in every country. Please check with local NEC representative for availability and additional information. Document No. U12255EJ2V0DS00 (2nd edition) Date Published December 1999 N CP(K) Printed in Japan
The mark
shows major revised points.
©
1997,1999
µPD784927, 784928, 784927Y, 784928Y
APPLICATION FIELDS
Stationary VCR, video camera, In-TV VCR
ORDERING INFORMATION
(1) µPD784928 subseries Part Number Package 100-pin plastic LQFP (fine pitch) (14 × 14 mm) 100-pin plastic QFP (14 × 20 mm) 100-pin plastic LQFP (fine pitch) (14 × 14 mm) 100-pin plastic QFP (14 × 20 mm)
µ P D 7 8 4 9 2 7 G C - × × × - 8 E UN o t e µP D 7 8 4 9 2 7 G F - × × ×- 3 B A µ P D 7 8 4 9 2 8 G C - × × × - 8 E UN o t e µP D 7 8 4 9 2 8 G F - × × ×- 3 B A
(2) µPD784928Y subseries Part Number
Package 100-pin plastic LQFP (fine pitch) (14 × 14 mm) 100-pin plastic QFP (14 × 20 mm) 100-pin plastic LQFP (fine pitch) (14 × 14 mm) 100-pin plastic QFP (14 × 20 mm)
µ P D 7 8 4 9 2 7 Y G C -× × × - 8 E U Note µ P D 7 8 4 9 2 7 Y G F - × × ×- 3 B A µ P D 7 8 4 9 2 8 Y G C -× × × - 8 E U Note µ P D 7 8 4 9 2 8 Y G F - × × ×- 3 B A
Note Under development
Remark ××× indicates ROM code suffix.
PRODUCT DEVELOPMENT OF VCR-SERVO MICROCONTROLLERS
The product development of VCR-servo microcontrollers is shown below. Enclosed in a frame are subseries names. The Y subseries is a collection of products supporting the I2C bus.
Products under mass production
Products under development
78K/IV series
µPD784928
µPD784928Y
100-pin QFP. With flash memory. Expanded internal memory capacity. More powerful analog amplifier. Improved VCR functions. Increased I/O. High-current port added. I2C function added (Y model only). 100-pin QFP. Expanded internal memory capacity. Internal analog amplifier. Reinforced super timer. Low-power consumption mode added. 100-pin QFP Expanded internal RAM capacity. Operational amplifier, watch function, multiplier added.
µPD784915
78K/I series
µPD78148
µPD78138
80-pin QFP
2
Data Sheet U12255EJ2V0DS00
µPD784927, 784928, 784927Y, 784928Y
FUNCTION LIST (1/2)
Part Number Item Internal ROM capacity Internal RAM capacity Operating clock 96K bytes 2048 bytes 128K bytes 3584 bytes
µPD784927, 784927Y
µPD784928, 784928Y
16 MHz (internal clock: 8 MHz) Low frequency oscillation mode : 8 MHz (internal clock: 8 MHz) Low power consumption mode : 32.768 kHz (subsystem clock) 250 ns (with 8 MHz internal clock)
Minimum instruction e x e c u tion time I/O port
74
input : 20 I/O : 54 (including 8 ports for LED direct drive)
Real-time output port Timer/counter
11 (including one each for pseudo VSYNC, head amplifier switch, and chrominance rotation) Timer/counter TM0 (16 bits) TM1 (16 bits) FRC (22 bits) TM3 (16 bits) UDC (5 bits) EC (8 bits) EDV (8 bits) Input signal CFG DFG HSW VSYNC CTL T REEL SREEL · · · · Compare register 3 3 -- 2 1 4 1 Number of bits 22 22 16 22 16 22 22 Capture register -- 1 6 1 -- -- -- Measurable cycle 125 ns to 524 ms 125 ns to 524 ms 1 µs to 65.5 ms 125 ns to 524 ms 1 µs to 65.5 ms 125 ns to 524 ms 125 ns to 524 ms Remark
For HSW signal generation For CFG signal division Operating edge
Capture register
Super timer unit
VCR special circuit
VSYNC separation circuit, HSYNC separation circuit VISS detection, wide aspect detection circuits Field identification circuit Head amplifier switch/chrominance rotation output circuit Timer TM2 (16 bits) TM4 (16 bits) TM5 (16 bits) Compare register 1 1 (capture/compare) 1 Capture register -- 1 --
General-purpose timer
PWM output
· ·
16-bit resolution : 3 channels (carrier frequency: 62.5 kHz) 8-bit resolution : 3 channels (carrier frequency: 62.5 kHz)
Serial interface
3-wire serial I/O: 2 channels (BUSY/STRB control: 1 channel) · I2C bus interface: 1 channel (µPD784928Y subseries only) 8-bit resolution × 12 channels, conversion time: 10 µs
A/D converter
Data Sheet U12255EJ2V0DS00
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