
4
S71AL016D_02_04_00_A1 November 11, 2004
A d v a n c e I n f o r m a t i o n
2Mbit Type 2 SRAM
Common Features . . . . . . . . . . . . . . . . . . . . . . . . 66
Functional Description . . . . . . . . . . . . . . . . . . . . . 66
Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . 66
Operating Range ..................................................................................................67
Product Portfolio ................................................................................................67
Electrical Characteristics ..................................................................................67
Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
AC Test Loads and Waveforms . . . . . . . . . . . . . 68
Figure 1. AC Test Loads and Waveforms................................ 68
Data Retention Characteristics (Over the
Operation Range) . . . . . . . . . . . . . . . . . . . . . . . . . 68
Figure 2. Data Retention Waveform...................................... 69
Switching Characteristics . . . . . . . . . . . . . . . . . . 70
Switching Waveforms . . . . . . . . . . . . . . . . . . . . . . 71
Figure 3. Read Cycle 1 (Address Transition Controlled)........... 71
Figure 4. Read Cycle 2 (OE# Controlled)............................... 71
Figure 5. Write Cycle 1 (WE# Controlled).............................. 72
Figure 6. Write Cycle 2 (CE# Controlled) .............................. 73
Figure 7. Write Cycle 3 (WE# Controlled, OE# LOW).............. 73
Figure 8. Write Cycle 4 (BHE#/BLE# Controlled, OE# Low)..... 74
Typical DC and AC Parameters . . . . . . . . . . . . . 74
Figure 9. Operating Current vs. Supply Voltage ..................... 74
Figure 10. Standby Current vs. Supply Voltage...................... 74
Figure 11. Access Time vs. Supply Voltage............................ 75
Truth Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Table 1. Truth Table ........................................................... 75
Revision Summary