MT55L1MY18P Micron Semiconductor Products, Inc., MT55L1MY18P Datasheet - Page 22

• Manufacturer Part Number: MT55L1MY18P
• Description: 18Mb ZBT SRAM, 3.3V Vdd, 2.5V or 3.3V I/O; 2.5V Vdd, 2.5V I/O, Pipelined,
• Manufacturer: Micron Semiconductor Products, Inc.

3.3V V
Input pulse levels ........................V
Input rise and fall times ............................................. 1ns
Input timing reference levels............................. V
Output reference levels ....................................V
Output load................................... See Figures 11 and 12
3.3V V
Input pulse levels ....................V
Input rise and fall times ..............................................1ns
Input timing reference levels............................V
Output reference levels .......................................V
Output load................................... See Figures 13 and 14
NOTE:
18Mb: 1 Meg x 18, 512K x 32/36 Pipelined ZBT SRAM
MT55L1MY18P_16_D.fm – Rev. D, Pub. 2/03
For Figures 11 and 13, 30pF = distributive test jig capacitance.
3.3V I/O Output Load Equivalent
DD
DD
, 3.3V I/O AC Test Conditions
, 2.5V I/O AC Test Conditions
Q
Q
351
......................... V
..................... V
Z = 50
Figure 11:
Figure 12:
O
V
+3.3V
T
= V
IH
IL
IH
= (V
317
5pF
IL
= (V
DD
= (V
= (V
Q/2.2
50
30pF
DD
DD
DD
DD
/2.64) + 1.25V
/2.64) - 1.25V
/2.2) + 1.5V
/2.2) - 1.5V
DD
DD
DD
DD
Q/2.2
/2.64
/2.2
Q/2
22
2.5V V
Input pulse levels..........................V
Input rise and fall times ............................................. 1ns
Input timing reference levels.................................V
Output reference levels .......................................V
Output load................................... See Figures 13 and 14
18Mb: 1 MEG x 18, 512K x 32/36
2.5V I/O Output Load Equivalent
Micron Technology, Inc., reserves the right to change products or specifications without notice.
DD
, 2.5V I/O AC Test Conditions
Q
Q
225
.......................... V
PIPELINED ZBT SRAM
Z = 50
Figure 13:
Figure 14:
O
+2.5V
V
T
= V
IH
225
5pF
IL
DD
= (V
= (V
Q/2
50
30pF
©2003 Micron Technology, Inc.
DD
DD
/2) + 1.25V
/2) - 1.25V
DD
DD
Q/2
/2