参数资料
型号: ST93C47M3013TR
厂商: STMICROELECTRONICS
元件分类: PROM
英文描述: 128 X 8 MICROWIRE BUS SERIAL EEPROM, PDSO8
封装: 0.150 INCH, PLASTIC, SO-8
文件页数: 9/13页
文件大小: 111K
代理商: ST93C47M3013TR
Figure 5. Synchronous Timing, Read or Write
AI00820C
C
D
Q
ADDRESS INPUT
Hi-Z
tDVCH
tCLSL
A0
S
DATA OUTPUT
tCHQV
tCHDX
tCHQL
An
tSLSH
tSLQZ
Q15/Q7
Q0
AI01429
C
D
Q
ADDRESS/DATA INPUT
Hi-Z
tDVCH
tSLCH
A0/D0
S
WRITE CYCLE
tSLSH
tCHDX
An
tCLSL
tSLQZ
BUSY
tSHQV
tW
READY
counter automatically rolls over to ’00’ when the
highest address is reached.
Programming is internally self-timed (the external
clock signal on C input may be disconnected or left
running after the start of a Write cycle) and does
not require an erase cycle prior to the Write instruc-
tion. The Write instruction writes 8 or 16 bits at one
time into one of the 128 bytes or 64 words. After
the start of the programming cycle a Busy/Ready
signal is available on the Data output (Q) when
Chip Select (S) is High.
An internal feature of the ST93C46 provides
Power-on Data Protection by inhibiting any opera-
tion when the Supply is too low. The design of the
ST93C46 and the High Endurance CMOS technol-
ogy used for its fabrication give an Erase/Write
cycle Endurance of 1,000,000 cycles and a data
retention of 40 years.
The DU (Don’t Use) pin does not affect the function
of the memory and it is reserved for use by SGS-
THOMSON during test sequences.The pin may be
left unconnected or may be connected to VCC or
VSS. Direct connection of DU to VSS is recom-
mended for the lowest standby power consump-
tion.
DESCRIPTION (cont’d)
5/13
ST93C46A/46C/46T, ST93C47C/47T
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