m29f200t STMicroelectronics, m29f200t Datasheet - Page 12

• Manufacturer Part Number: m29f200t
• Description: 2 Mbit 256kb X8 Or 128kb X16, Boot Block Single Supply Flash Memory
• Manufacturer: STMicroelectronics

M29F200T, M29F200B
Table 11. AC Measurement Conditions
Figure 4. AC Testing Input Output Waveform
Table 12. Capacitance
Note: 1. Sampled only, not 100% tested.
Block Erase (BE) Instruction. This instruction
uses a minimum of six write cycles. The Erase
Set-up command 80h is written to address AAAAh
in the Byte-wide configuration or address 5555h in
the Word-wide configuration on third cycle after the
two Coded cycles. The Block Erase Confirm com-
mand 30h is similarly written on the sixth cycle after
another two Coded cycles. During the input of the
second command an addresswithin the block to be
erased is given and latched into the memory. Addi-
tional block Erase Confirm commands and block
addresses can be written subsequently to erase
12/33
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref. Voltages
High Speed
Standard
Symbol
0.45V
2.4V
C
C
3V
0V
OUT
IN
Input Capacitance
Output Capacitance
Parameter
(1)
(T
A
= 25 C, f = 1 MHz )
AI01275B
1.5V
2.0V
0.8V
Test Condition
High Speed
V
V
OUT
0 to 3V
IN
1.5V
10ns
= 0V
Figure 5. AC Testing Load Circuit
= 0V
other blocks in parallel, without further Coded cy-
cles. The erase will start after the erase timeout
period (see Erase Timer Bit DQ3 description).
Thus, additional Erase Confirm commands for
other blocks must be given within this delay. The
input of a new Erase Confirm command will restart
the timeout period. The status of the internal timer
can be monitored through the level of DQ3, if DQ3
is ’0’ the Block Erase Command has been given
and the timeout is running, if DQ3 is ’1’, the timeout
has expired and the P/E.C. is erasing the Block(s).
If the second command given is not an erase
C L = 30pF for High Speed
C L = 100pF for Standard
C L includes JIG capacitance
DEVICE
UNDER
TEST
Min
1.3V
1N914
3.3k
0.45V to 2.4V
0.8V and 2V
C L
Max
Standard
12
6
10ns
OUT
AI01276B
Unit
pF
pF