EM78P211/2N
8-Bit Microprocessor with OTP ROM
1 General Description
EM78P211N and EM78P212N are 8-bit microprocessors designed and developed with low-power and high-speed CMOS
technology. Each device in the series has as an on-chip 2K×13-bit Electrical One Time Programmable Read Only Memory
(OTP-ROM). Each provides a protection bit to prevent intrusion of user’s OTP memory code. Two Code option bits are
also available to meet user’s requirements.
With its enhanced OTP-ROM features, each device provides a convenient way of developing and verifying user’s
programs. Moreover, this OTP devices offer the advantages of easy and effective program updates, using development
and programming tools. User can avail of the ELAN Writer to easily program his development code.
2 Features
CPU configuration
Drift Rate
Voltage
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2K×13 bits on-chip OTP-ROM
80×8 bits on-chip registers (SRAM)
8-level stacks for subroutine nesting
Internal RC
Frequency
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Temperature
Process Total
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(-40°C+85°C) (2.1V~5.5V)
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3 programmable Level Voltage Reset
(LVR) : 4.0V, 3.0V, 2.5V
4MHz
16MHz
1MHz
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±4%
±4%
±4%
±4%
±14%
±14%
±14%
±14%
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Less than 1.5 mA at 5V/4MHz
Typically 15 µA, at 3V/32kHz
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Typically 2 µA, during sleep mode
I/O port configuration
455MHz
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4 bidirectional I/O ports: P5, P6, P7 and P8
Wake-up port : P6
All these four main frequencies can be trimmed by
programming with four calibrated bits in the ICE220N
Simulator. OTP is auto trimmed by ELAN Writer
(DWTR).
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22 I/O pins
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8 programmable pull-down I/O pins
8 programmable pull-high I/O pins
8 programmable open-drain I/O pins
16 Programmable high sink current I/O pins
8 Programmable high drive current I/O pins
External interrupt : P77, P71
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Fast set-up time requires only 800µs (VDD:5V,
Crystal: 4MHz, C1/C2: 30pF) in HXT2 mode and 64µs in
IRC mode (VDD:5V IRC:4MHz)
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Peripheral configuration
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8-bit real time clock/counter (TCC) with selective
signal sources, trigger edges, and overflow interrupt
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Operating voltage range:
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One comparator
(offset voltage is smaller than 10mV)
OTP version:
Operating voltage range: 2.1V~5.5V (commercial)
Operating voltage range: 2.3V~5.5V (industrial)
Operating temperature range:
Five available interrupts
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TCC overflow interrupt
Input-port status changed interrupt (wake up from
sleep mode)
Operating temperature range: 0°C~70°C (commercial)
Operating temperature range: -40°C~85°C (industrial)
Operating frequency range
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Two External interrupts
Comparator high/low interrupt
Special Features
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Crystal mode:
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Programmable free running Watchdog Timer
Two clocks per instruction cycle
DC~12MHz/2 clks @ 4.0V; DC~166ns inst. cycle @
4.0V
DC ~ 8MHz/2 clks @ 3V; DC~250ns inst. Cycle @ 3V
ERC mode:
Power-on voltage detector available (1.8 V± 0.1V)
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High EFT immunity (better performance at 4MHz or
below
DC ~ 16MHz/2 clks @ 4.5V; DC~125ns inst. cycle @
4.5V
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Power saving Sleep mode
Selectable Oscillation mode
DC ~ 8MHz/2 clks @ 3V; DC ~ 250ns inst. Cycle @ 3V
IRC mode:
Package Type:
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20-pin DIP 300mil
: EM78P211NPS/NPJ
: EM78P211NMS/NMJ
: EM78P211NAMS/NAMJ
Oscillation mode: 16MHz, 4 MHz, 1 MHz, 455kHz
Process deviation: Typ ± 3%, Max. ± 5%
20-pin SOP 300mil
20-pin SSOP 209mil
°
°
Temperature deviation: ± 5% (-40 C~85 C)
24-pin skinny DIP 300mil : EM78P212NKS/NKJ
24 pin SOP 300mil
24 pin SSOP 209mil
: EM78P212NMS/NMJ
: EM78P212NAMS/NAMJ
Product Specification (V1.0) 03.20.2007
(This specification is subject to change without further notice)
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ELAN [ ELAN MICROELECTRONICS CORP ]
