M93S46-BN3 STMICROELECTRONICS [STMicroelectronics], M93S46-BN3 Datasheet - Page 12

• Manufacturer Part Number: M93S46-BN3
• Description: 4Kbit, 2Kbit and 1Kbit 16-bit wide MICROWIRE Serial Access EEPROM with Block Protection
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M93S66, M93S56, M93S46
Figure 6. PREAD, PRWRITE and PREN Sequences
Note: For the meanings of An, Xn and Dn, please see
12/34
Protect
Register
READ
Protect
Register
WRITE
Protect
Register
ENABLE
PRE
S
Q
W
S
Q
S
PRE
PRE
W
D
D
D
Table 2.
1 1 0 Xn
1 0
1
CODE
CODE
CODE
OP
OP
0
OP
1
0
1
and
An
1
ADDR
ADDR
Xn X0
Table
X0
A0
3..
An
DATA
OUT
BUSY
A0 F
STATUS
CHECK
F = Protect Flag
READY
AI00891D