参数资料
型号: MTA85812S-10I/SS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 10 MHz, RISC MICROCONTROLLER, PDSO20
封装: 0.209 INCH, PLASTIC, SSOP-20
文件页数: 54/72页
文件大小: 760K
代理商: MTA85812S-10I/SS
MTA85XXX
DS40115C-page 58
1995 Microchip Technology Inc.
20.0
GENERAL EEPROM
INFORMATION
20.1
Noise Protection
The EEPROM employs a VCC threshold detector circuit
which disables the internal erase/write logic if the VCC
is below 1.5V at nominal conditions.
The SCL and SDA inputs have Schmitt trigger and filter
circuits which suppress noise spikes to assure proper
device operation even on a noisy bus.
20.2
SDA Serial Address/Data Input/
Output
This is a bidirectional pin used to transfer addresses
and data into and data out of the device. It is an open
drain terminal, therefore the SDA bus requires a pullup
resistor to VCC (typical 10 k
for 100 kHz and 1 k for
400 kHz).
For normal data transfer SDA is allowed to change only
during SCL low. Changes during SCL high are
reserved
for
indicating
the
START
and
STOP
conditions.
20.3
SCL Serial Clock
This input is used to synchronize the data transfer from
and to the device.
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