
December 23, 2004 S71PL129Jxx_00_A5
5
A d v a n c e I n f o r m a t i o n
DC and Operating Characteristics . . . . . . . . . . . 121
Common ...............................................................................................................121
16M pSRAM .........................................................................................................122
32M pSRAM ........................................................................................................122
64M pSRAM ........................................................................................................123
128M pSRAM .......................................................................................................123
AC Operating Conditions . . . . . . . . . . . . . . . . . 124
Test Conditions (Test Load and Test Input/Output Reference) .......124
Figure 45. Output Load ..................................................... 124
Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 126
Read Timings ......................................................................................................126
Figure 46. Timing Waveform of Read Cycle(1)...................... 126
Figure 47. Timing Waveform of Read Cycle(2)...................... 126
Write Timings ....................................................................................................127
Figure 49. Write Cycle #1 (WE# Controlled) ........................ 127
Figure 50. Write Cycle #2 (CS1# Controlled) ....................... 128
Figure 51. Timing Waveform of Write Cycle(3)
(CS2 Controlled) .............................................................. 128
Figure 52. Timing Waveform of Write Cycle(4) (UB#, LB#
Controlled) ...................................................................... 129
pSRAM Type 7
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Functional Description . . . . . . . . . . . . . . . . . . . . . 131
Power Down (for 32M, 64M Only) . . . . . . . . . . . . 131
Power Down .......................................................................................................131
Power Down Program Sequence .................................................................132
Address Key .......................................................................................................132
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . 133
Package Capacitance . . . . . . . . . . . . . . . . . . . . . . 133
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . 134
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . 135
Read Operation ..................................................................................................135
Write Operation ...............................................................................................136
Power Down Parameters ...............................................................................137
Other Timing Parameters ...............................................................................137
AC Test Conditions .........................................................................................138
AC Measurement Output Load Circuits ...................................................138
Figure 53. AC Output Load Circuit – 16 Mb.......................... 138
Figure 54. AC Output Load Circuit – 32 Mb and 64 Mb.......... 138
Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 139
Read Timings .......................................................................................................139
Figure 55. Read Timing #1 (Basic Timing) .......................... 139
Figure 56. Read Timing #2 (OE# Address Access................. 139
Figure 57. Read Timing #3 (LB#/UB# Byte Access) ............. 140
Figure 58. Read Timing #4 (Page Address Access after CE1#
Control Access for 32M and 64M Only) ............................... 140
Figure 59. Read Timing #5 (Random and Page Address Access for
32M and 64M Only) ......................................................... 141
Write Timings ......................................................................................................141
Figure 60. Write Timing #1 (Basic Timing) .......................... 141
Figure 61. Write Timing #2 (WE# Control).......................... 142
Figure 62. Write Timing #3-1
(WE#/LB#/UB# Byte Write Control) .................................. 142
Figure 63. Write Timing #3-3
(WE#/LB#/UB# Byte Write Control) .................................. 143
Figure 64. Write Timing #3-4
(WE#/LB#/UB# Byte Write Control) .................................. 143
Read/Write Timings ..........................................................................................144
Figure 65. Read/Write Timing #1-1 (CE1# Control) ............. 144
Figure 66. Read / Write Timing #1-2
(CE1#/WE#/OE# Control) ................................................ 144
Figure 67. Read / Write Timing #2 (OE#, WE# Control) ....... 145
Figure 68. Read / Write Timing #3
(OE#, WE#, LB#, UB# Control) ........................................ 145
Figure 69. Power-up Timing #1 ......................................... 146
Figure 70. Power-up Timing #2 ......................................... 146
Figure 71. Power Down Entry and Exit Timing ..................... 146
Figure 72. Standby Entry Timing after Read or Write............ 147
Figure 73. Power Down Program Timing (for 32M/64M Only) . 147
Revision Summary