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EM78P153S plc解密

来源:芯片解密-龙芯世纪   时间:2010-07-08   阅读:1427

EM78P153S 芯片解密是龙芯世纪在 研究中成功破解的典型芯片型号,针对该芯片,我们解密周 期短、价格低、可靠性强。这里,我们将针对EM78P153S芯片的主要技术特征做简单介绍,这里我们仅提供对EM78P153S芯片的主要 功能特征介绍,供客户及各类芯片解密工程师与电子工程师参考借鉴,有plc解密,ic解密 需求者请直接与我们联系咨询。

下面是关于EM78P153S芯片的主要性能特征介绍,我们提供给广大客户及其他各类技术工程师参考借鉴。

EM78P153S is an 8-bit microprocessor with low-power and high-speed CMOS technology. It is equipped with a 1024 x 13-bits Electrical One Time Programmable Read Only Memory (OTP-ROM) within it. It provides a PROTECTION bit to prevent intrusion of user’s code in the OTP memory as well as 15 OPTION bits to match user’s requirements. With its OTP-ROM feature, the EM78P153S offers users a convenient way of developing and verifying their programs. Moreover, user developed code can be easily programmed with the ELAN writer.
Features
14-lead packages : EM78P153S
Operating voltage range : 2.3V~5.5V
Available in temperature range: 0°C~70°C
Operating frequency range (base on 2 clocks):
* Crystal mode: DC~20MHz at 5V, DC~8MHz at 3V, DC~4MHz at 2.3V.
* ERC mode: DC~4MHz at 5V, DC~4MHz at 3V, DC~4MHz at 2.3V.
Low power consumption:
* less then 1.5 mA at 5V/4MHz
* typical of 15 ?A, at 3V/32KHz
* typical of 1?A, during the sleep mode
1024 x 13 bits on chip ROM
Built-in calibrated IRC oscillators (8MHz, 4MHz, 1MHz, 455KHz )
Programmable prescaler of oscillator set-up time
One security register to prevent the code in the OTP memory from intruding
One configuration register to match the user’s requirements
32× 8 bits on chip registers (SRAM, general purpose register)
2 bi-directional I/O ports
5 level stacks for subroutine nesting
8-bit real time clock/counter (TCC) with selective signal sources and trigger edges,
and with overflow interrupt
Power down mode (SLEEP mode)
Three available interruptions
* TCC overflow interrupt
* Input-port status changed interrupt (wake up from the sleep mode)
* External interrupt
Programmable free running watchdog timer
7 programmable pull-high I/O pins
7 programmable open-drain I/O pins
6 programmable pull-down I/O pins
Two clocks per instruction cycle
Package type: 14 pins SOP, DIP
* 14 pin DIP 300mil: EM78P153SP
* 14 pin SOP 150mil: EM78P153SN
The transient point of system frequency between HXT and LXT is around 400KHz.


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