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PDF ePS5001 Data sheet ( Hoja de datos )
| Número de pieza | ePS5001 | |
| Descripción | RISC II Series Microcontroller | |
| Fabricantes | ELAN Microelectronics | |
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ePS5001
RISC II Series
Microcontroller
Product
Specification
DOC. VERSION 1.1
ELAN MICROELECTRONICS CORP.
May 2014
1 page  
ePS5001
RISC II Series Microcontroller
1 General Description
The ePS5001 is an 8-bit RISC MCU embedded with a 5×40 LCD driver along with two
8-bit timers, one 16-bit general timer, and a Watchdog Timer. It has also an on-chip
128 bytes RAM and 2K words program ROM. It is highly ideal for advance scientific
calculator application, particularly those requiring high performance and low cost
solution.
The MCU core is one of ELAN’s second generation RISC based IC’s, known as RISC II
(RII) series. The core was specifically designed for low power and portable device
applications. The ePS5001 also supports Fast, Slow and Idle modes, as well as Sleep
mode to enhance its low power consumption features.
IMPORTANT NOTES!
■ Do not use Register BSR (05h) Bit 7 ~ Bit 0.
■ Do not use Register BSR1 (07h) Bit 7 ~ Bit 0.
■ Check that the range of BSR (05h) and BSR1 (07h) are only 0x00.
■ Do not use LCD RAM 28h ~ FFh.
■ Do not use JDNZ at FSR1 (04h) special register.
■ Do not use JDNZ at LCDARL (09h) special register.
■ Do not use PUSH, POP by "MOV A,r" to avoid affecting S_Z.
2 Features
MCU
8 bit RISC MCU
Operating voltage: 1.2V ~ 1.8V
Clock Source: Dual system clock
• Low-frequency: 32kHz Internal RC oscillator / Crystal oscillator
• High-frequency: 200kHz / 300kHz / 500kHz External RC oscillator
One Instruction cycle time = 2 × System clock time
Program ROM addressing: 2K words max.
128 bytes un-banked RAM including special registers and common registers
1×128 bytes banked RAM
32-level RAM stack
Lookup Table function is fast and highly efficient when combined with Repeat
instruction
Product Specification (V1.1) 05.13.2014
(This specification is subject to change without further notice)
•1
5 Page 
ePS5001
RISC II Series Microcontroller
Sleep Mode Wake-up Timing
Sleep mode
Wake-up to operating mode
VDD
Wake-up pin
OSC
CPU work
Tpwr
Twup2
Tclk
Figure 7-2 Sleep Mode Wake-up Timing Diagram
Condition: Vdd = 1.5V, Cosc = 20pF and Ta = 25°C
Symbol
Tpwr
Twup1
Twup2
Tclk
Characteristics
Oscillator start up time (Crystal)
CPU warm up time (Power-on reset)
CPU warm up time (Sleep mode wakeup)
Detect slow clock time
Min.
-
-
-
-
Typ.
480
500
485
1.0
Max.
780
800
785
1.1
Unit
ms
ms
ms
ms
7.2 MCU Operation Timing
MS0
System Slow
clock Mode
Target
Fast Mode
32.768K
0 ms Ts
0.1 m s
Tim e
Figure 7-3 Slow Mode to Fast Mode Timing Diagram
Note:
1. Slow Mode switches to Fast Mode at Time = 0 ms.
2. System clock will switch to Fast Mode after a delay of 0.1ms by oscillator and
enters into Fast Mode (i.e., system clock will be at 200, 300, or 500kHz).
3. High frequency RC will be stabilized at Time=Ts (15 µs~30 µs).
Product Specification (V1.1) 05.13.2014
(This specification is subject to change without further notice)
•7
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet ePS5001.PDF ] | |
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