28C16A_04 Datasheet, PDF (5/10 Pages) Microchip Technology – 16K (2K x 8) CMOS EEPROM

FIGURE 1-3: DATA POLLING WAVEFORMS
VIH
Address
VIL
VIH
CE
VIL
VIH
WE
VIL
VIH
OE
VIL
VIH
Data
VIL
Address Valid
t WPL
t WPH
t DV
Data In
Valid
t WC
28C16A
t ACC
t CE
Last Written
Address Valid
t OE
I/O7 Out
True Data Out
FIGURE 1-4: CHIP CLEAR WAVEFORMS
VIH
CE
VIL
VH
OE
VIH
VIH
WE
VIL
tS
tW
tH
tW = 10ms
tS = tH = 1µs
VH = 12.0V ±0.5V
TABLE 1-5: SUPPLEMENTARY CONTROL
Mode
Chip Clear
Extra Row Read
Extra Row Write
Note 1: VH = 12.0V±0.5V
CE
OE
WE
A9
VIL
VH
VIL
X
VIL
VIL
VIH
A9 = VH
*
VIH
*
A9 = VH
* Pulsed per programming waveforms.
VCC
I/OI
VCC
VCC
Data Out
VCC
Data In
 2004 Microchip Technology Inc.
DS11125J-page 5