93AA46A_05 Datasheet, PDF (5/28 Pages) Microchip Technology – 1K Microwire Compatible Serial EEPROM

93AA46A/B/C, 93LC46A/B/C, 93C46A/B/C
FIGURE 1-1:
SYNCHRONOUS DATA TIMING
VIH
CS
VIL
VIH
CLK
VIL
TDIS
VIH
DI
VIL
TCSS
DO ^VOH
(Read) _VOL
TSV
DO ^VOH
(Program)
VOL
Note: TSV is relative to CS.
TCKH
TDIH
TPD
TCKL
Status Valid
TCSH
TPD
TCZ
TCZ
TABLE 1-3: INSTRUCTION SET FOR X 16 ORGANIZATION (93XX46B OR 93XX46C WITH ORG = 1)
Instruction SB Opcode
Address
Data In Data Out Req. CLK Cycles
ERASE
1
11
A5 A4 A3 A2 A1 A0
—
(RDY/BSY)
9
ERAL
1
00
10XXXX
—
(RDY/BSY)
9
EWDS
1
00
00XXXX
—
High-Z
9
EWEN
1
00
11XXXX
—
High-Z
9
READ
1
10
A5 A4 A3 A2 A1 A0
—
D15 - D0
25
WRITE
1
01
A5 A4 A3 A2 A1 A0 D15 - D0 (RDY/BSY)
25
WRAL
1
00
0 1 X X X X D15 - D0 (RDY/BSY)
25
TABLE 1-4: INSTRUCTION SET FOR X 8 ORGANIZATION (93XX46A OR 93XX46C WITH ORG = 0)
Instruction SB Opcode
Address
Data In Data Out Req. CLK Cycles
ERASE
1
11
A6 A5 A4 A3 A2 A1 A0
—
(RDY/BSY)
10
ERAL
1
00
10XXXXX
—
(RDY/BSY)
10
EWDS
1
00
00XXXXX
—
High-Z
10
EWEN
1
00
11XXXXX
—
High-Z
10
READ
1
10
A6 A5 A4 A3 A2 A1 A0
—
D7 - D0
18
WRITE
1
01 A6 A5 A4 A3 A2 A1 A0 D7 - D0 (RDY/BSY)
18
WRAL
1
00
0 1 X X X X X D7 - D0 (RDY/BSY)
18
© 2005 Microchip Technology Inc.
DS21749F-page 5