M93C56 STMICROELECTRONICS [STMicroelectronics], M93C56 Datasheet - Page 15

• Manufacturer Part Number: M93C56
• Description: 16 Kbit, 8 Kbit, 4 Kbit, 2 Kbit and 1 Kbit (8-bit or 16-bit wide)
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M93C86, M93C76, M93C66, M93C56, M93C46
5.3
Figure 4.
1. For the meanings of An, Xn, Qn and Dn, see
Erase Byte or Word
The Erase Byte or Word (ERASE) instruction sets the bits of the addressed memory byte (or
word) to 1. Once the address has been correctly decoded, the falling edge of the Chip
Select Input (S) starts the self-timed Erase cycle. The completion of the cycle can be
detected by monitoring the READY/BUSY line, as described in the
section.
Read
Write
Write
Enable
READ, WRITE, WEN, WDS sequences
S
Q
S
S
Q
D
D
D
1 0
1
1 1 0 An
CODE
CODE
CODE
OP
0
OP
OP
1
0
1
An
1
ADDR
ADDR
Doc ID 4997 Rev 10
Xn X0
A0
A0
Qn
Dn
Table
5.,
DATA OUT
DATA IN
Table 6.
Write
Disable
and
Table
S
D
D0
Q0
7..
BUSY
READY/BUSY status
1
CODE
STATUS
CHECK
0
OP
0
0
0
READY
Xn X0
Instructions
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