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参数资料
| 型号： | M93S66-DW1 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | PROM |
| 英文描述： | 256 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
| 封装： | 0.169 INCH, PLASTIC, TSSOP-8 |
| 文件页数： | 2/23页 |
| 文件大小： | 163K |
| 代理商： | M93S66-DW1 |
INSTRUCTIONS
The M93S66/S56/S46 have eleven instructions, as
shown in Table 7. Each instruction is preceded by
the rising edge of the signal applied on the Chip
Select (S) input (assuming that the clock C is low).
After the device is selected, the internal logic waits
for the start bit, which define the begining of the
instruction bit stream. The start bit is the first ’1’ read
on D input during the rising edge of the clock C.
Following the start bit, the op-codes of the instruc-
tions are made up of the 2 following bits. Notice that
some instructions use only these first two bits,
others use also the first two bits of the address to
define the op-code. The op-code is then followed
by the address of the word to be accessed.
For the M93S46, the address is made up of 6 bits
(See Table 7a). For the M93S56 and M93S66, the
address is made up of 8 bits (See Table 7b).
The M93Sx6 is fabricated in CMOS technology and
is therefore able to run from zero Hz (static input
signals) up to the maximum ratings (specified in
Table 6).
Instr.
Description
W
PRE
Start
Bit
Op-
Code
Address
(1)
Data
Req.
Clock
Cycles
Additional
Information
READ
Read Data from
Memory
X
’0’
’1’
10
A5-A0
Q15-Q0
WRITE
Write Data to
Memory
’1’
’0’
’1’
01
A5-A0
D15-D0
25
Write is executed
if the address is
not inside the
Protected area
PAWRITE
Page Write to
Memory
’1’
’0’
’1’
11
A5-A0
N x
D15-D0
9 + N
x 16
Write is executed
if all the N
addresses are not
inside the
Protected area
WRALL
Write All
Memory
’1’
’0’
’1’
00
01XXXX
D15-D0
25
Write all data if
the Protect
Register is cleared
WEN
Write Enable
’1’
’0’
’1’
00
11XXXX
9
WDS
Write Disable
X
’0’
’1’
00
00XXXX
9
PRREAD
Protect
Register Read
X
’1’
10
XXXXXX
Q5-Q0
+ Flag
Data Output =
Protect Register
content + Protect
Flag bit
PRWRITE
Protect
Register Write
’1’
01
A5-A0
9
Data above
specified address
A5-A0 are
protected
PRCLEAR
Protect
Register Clear
’1’
11
111111
9
Protect Flag is
also cleared
(cleared Flag = 1)
PREN
Protect
Register
Enable
’1’
00
11XXXX
9
PRDS
Protect
Register Disable
’1’
00
000000
9
OTP bit is set
permanently
Note: 1. X = don’t care bit.
Table 7A. Instruction Set for the M93S46
10/23
M93S66, M93S56, M93S46
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M93S66-DW3 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4Kbit, 2Kbit and 1Kbit 16-bit wide MICROWIRE Serial Access EEPROM with Block Protection |
| M93S66-DW3G | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4Kbit, 2Kbit and 1Kbit 16-bit wide MICROWIRE Serial Access EEPROM with Block Protection |
| M93S66-DW3P | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4Kbit, 2Kbit and 1Kbit 16-bit wide MICROWIRE Serial Access EEPROM with Block Protection |
| M93S66-DW3T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4Kbit, 2Kbit and 1Kbit 16-bit wide MICROWIRE Serial Access EEPROM with Block Protection |
| M93S66-DW3TG | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4Kbit, 2Kbit and 1Kbit 16-bit wide MICROWIRE Serial Access EEPROM with Block Protection |
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