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UPD780138 Datasheet(PDF) 34 Page - NEC

No. de Pieza. UPD780138
Descripción  8-Bit Single-Chip Microcontrollers
Descarga  558 Pages
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Fabricante  NEC [NEC]
Página de inicio  http://www.nec.com/
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UPD780138 Datasheet(HTML) 34 Page - NEC

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CHAPTER 1 OUTLINE
User’s Manual U16228EJ2V0UD
34
1.7 Outline of Functions
(1/2)
Item
µPD780131 µPD780132 µPD780133 µPD780134 µPD78F0134 µPD780136 µPD780138 µPD78F0138
Mask ROM
8 K
16 K
24 K
32 K
48 K
60 K
Flash memory
32 K
Note
60 K
Note
High-speed RAM
512
1 K
1 K
Note
1 K
1 K
Note
Internal
memory
(bytes)
Expansion RAM
1 K
1 K
Note
Memory space
64 KB
X1 input clock (oscillation
frequency)
Ceramic/crystal/external clock oscillation
Standard products,
(A) grade products
REGC pin is connected directly to VDD:
10 MHz (VDD = 4.0 to 5.5 V), 8.38 MHz (VDD = 3.3
to 5.5 V), 5 MHz (VDD = 2.7 to 5.5 V)
1
µF capacitor is connected to REGC pin: 8.38 MHz (VDD = 4.0 to 5.5 V)
(A1) grade products
REGC pin is connected directly to VDD:
10 MHz (VDD = 4.0 to 5.5 V), 8.38 MHz (VDD = 4.0
to 5.5 V), 5 MHz (VDD = 3.3 to 5.5 V)
(A2) grade products
REGC pin is connected directly to VDD:
8.38 MHz (VDD = 4.0 to 5.5 V), 5 MHz (VDD = 3.3
to 5.5 V)
Ring-OSC clock
(oscillation frequency)
On-chip Ring oscillation (240 kHz (TYP.))
Subsystem clock
(oscillation frequency)
Crystal/external clock oscillation (32.768 kHz)
General-purpose registers
8 bits
× 32 registers (8 bits × 8 registers × 4 banks)
0.2
µs/0.4 µs/0.8 µs/1.6 µs/3.2 µs (X1 input clock: @ fXP = 10 MHz operation)
8.3
µs/16.6 µs/33.2 µs/66.4 µs/132.8 µs (TYP.) (Ring-OSC clock: @ fR = 240 kHz (TYP.)
operation)
Minimum instruction execution
time
122
µs (subsystem clock: when operating at fXT = 32.768 kHz)
Instruction set
• 16-bit operation
• Multiply/divide (8 bits
× 8 bits, 16 bits ÷ 8 bits)
• Bit manipulate (set, reset, test, and Boolean operation)
• BCD adjust, etc.
I/O ports
Total:
51
CMOS I/O
38
CMOS input
8
CMOS output
1
N-ch open-drain I/O
4
Timers
• 16-bit timer/event counter: 2 channels (1 channel only in the
µPD780131, 780132)
• 8-bit timer/event counter:
2 channels
• 8-bit timer:
2 channels
• Watch timer
1 channel
• Watchdog timer:
1 channel
Timer outputs
5 (PWM output: 3)
6 (PWM output: 3)
Clock output
• 78.125 kHz, 156.25 kHz, 312.5 kHz, 625 kHz, 1.25 MHz, 2.5 MHz, 5 MHz, 10 MHz
(X1 input clock: 10 MHz)
• 32.768 kHz (subsystem clock: 32.768 kHz)
Buzzer output
1.22 kHz, 2.44 kHz, 4.88 kHz, 9.77 kHz (X1 input clock: 10 MHz)
A/D converter
10-bit resolution
× 8 channels
Note The internal flash memory capacity, internal high-speed RAM capacity, and internal expansion RAM capacity
can be changed using the internal memory size switching register (IMS) and the internal expansion RAM size
switching register (IXS).


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