
The high-speed, low-voltage, low-power V854 microcontroller features on-chip DSP functionality with
128K single-cycle flash memory and the advanced 32-bit RISC engine of NEC’s V850
family. The
V854 microcontroller provides standard on-chip peripherals such as D/A and A/D converters, complex
timers, and serial interfaces (including I
(118 mW at 33 MHz) and 3V low-voltage operation. When combined with the integrated multiply and
accumulate (MAC) function, the device offers an efficient and cost-effective solution for wireless and
multimedia applications.
C
) while maintaining exceptionally low power consumption
Many versions of the V850 core are available as part of NEC’s ASIC library. The architecture of
the V854 device is highly optimized for fast DSP-like operation and very efficient implementation
of C programmability.
V 8 5 4
3 2 - B I T R I S C M I C R O C O N T R O L L E R
S P E C I F I C A T I O N S
B L O C K D I A G R A M
—
Clock frequency: DC to 33 MHz
—
Performance
–
38 Dhrystone MIPS
–
322 MIPS/W
—
Two-cycle MAC instruction
—
Single-cycle frequency shift
—
2.7–3.6V operation
—
Power consumption: 118 mW at 33 MHz
—
0.35-μm CMOS process technology
—
6.3 mm x 6.4 mm die size
—
Package
–
144-pin plastic QFP
–
20 mm x 20 mm
96FM-1036C (11/98)
ALU
NMI
ASTB
DSTB
R/W
RD
CKSEL
CLKOUT
CLO
X1
X2
PLLSEL
ROM/Flash
SIO
CPU
BCU
RAM
INTP00–05
MODE0–2
R
AD0–AD15
A16–A23
UBEN
LBEN
WAIT
HLDRQ
HLDAK
WRH
WRL
BVDD
BVSS
RESET
VDD
VSS
VPP
CVDD
CVSS
Clock
Generator
System
Control
Programmable
Interrupt
Controller
Timer 0 24-Bit
Multifunction
Timer
128K
4K
32-Bit Barrel
Shifter
PC
System
Register
General-
Purpose
Registers
(32-Bit x 32)
Multiplier
16 x 16 32
Bus Control
Unit
Prefetch
Control
Instruction
Queue
Ports
Real-Time
Output Port
8 Bit x 1 Channel
A
A
A
A
A
D/A Converter
8 Bit x 16 Channels
TI0
TCLR0
TO00–01
BRG0
SO2
SI2
SCK2
SO0/TXD
SI0/RXD
SCK0
UART0/
CSI0
BRG1
BRG2
BRG3
P0 ... P14
SO1/SDA
SI1
SCK1/SCL
I2C1/
CSI1
CSI3
SO3
SI3
SCK3
CSI2
INTP10–14
INTP20–24
INTP30
INTP50–53
Timer 1 24-Bit
Real-Time
Pulse
TI1
Timer 2
5 x 16-Bit
Timer Counter
TO20–24
TI20–24
4-Channel
PWM
PWM0–PWM3
Timer 3 16-Bit
Interval
Timer
E
R
I
E
850
850
850
R
I
S