S1X70000 Datasheet, PDF (5/379 Pages) Epson Company – STANDARD CELL / EMBEDDED ARRAY

Table of Contents
4.4.4 Fail Safe Cells ............................................................................................................ 69
4.4.5 Gated Cells ................................................................................................................ 71
4.5 Dual-Power-Supply Input/Output Buffers (2.5-V Buffers: X Type) ......................................... 72
4.5.1 Input Buffers............................................................................................................... 72
4.5.2 Output Buffers ............................................................................................................ 73
4.5.3 Bi-directional Buffers.................................................................................................. 78
4.5.4 Fail Safe Cells ............................................................................................................ 82
4.5.5 Gated Cells ................................................................................................................ 84
4.5.6 Cutoff Cells................................................................................................................. 85
4.6 Dual Power Supplies Guidelines ............................................................................................ 87
4.6.1 Method of Adapting to Dual Power Supplies ............................................................. 87
4.6.2 Power Supplies for Dual Power Operation ................................................................ 87
4.6.3 Turning On/Off Dual Power Supplies......................................................................... 88
Chapter 5 Memory Blocks.......................................................................... 89
5.1 Basic Cell-Type RAM ............................................................................................................. 89
5.1.1 Features ..................................................................................................................... 89
5.1.2 Word/Bit Configurations of RAM and Cell Names ..................................................... 89
5.1.3 RAM Sizes ................................................................................................................. 91
5.1.4 Functional Description ............................................................................................... 92
5.1.5 Timing Charts............................................................................................................. 96
5.1.6 Delay Parameters ...................................................................................................... 98
5.1.7 Power Consumption of RAM.................................................................................... 146
5.2 High-Density-Type 1-port RAM ............................................................................................ 150
5.2.1 Features ................................................................................................................... 150
5.2.2 RAM Sizes ............................................................................................................... 150
5.2.3 Input Signals and Block Diagrams........................................................................... 150
5.2.4 Truth Table of Device Operation.............................................................................. 152
5.2.5 Timing Charts........................................................................................................... 153
5.2.6 Electrical Characteristics.......................................................................................... 154
5.2.7 Power Consumption................................................................................................. 155
5.3 High-Density-Type Dual-Port RAM ...................................................................................... 156
5.3.1 Features ................................................................................................................... 156
5.3.2 RAM Sizes ............................................................................................................... 156
5.3.3 Input Signals and Block Diagrams........................................................................... 156
5.3.4 Truth Table of Device Operation.............................................................................. 159
5.3.5 Timing Charts........................................................................................................... 161
5.3.6 Electrical Characteristics.......................................................................................... 163
5.3.7 Power Consumption................................................................................................. 164
5.4 Large-Capacity-Type 1-port RAM ........................................................................................ 165
5.4.1 Features ................................................................................................................... 165
5.4.2 RAM Sizes ............................................................................................................... 165
5.4.3 Input/Output Signals and Block Diagrams ............................................................... 166
5.4.4 Truth Table of Device Operation.............................................................................. 167
5.4.5 Timing Charts........................................................................................................... 169
5.4.6 Electrical Characteristics.......................................................................................... 170
5.4.7 Power Consumption................................................................................................. 171
5.5 High-Density Large-Capacity-Type 1-port RAM................................................................... 172
5.5.1 Features ................................................................................................................... 172
5.5.2 RAM Sizes ............................................................................................................... 172
5.5.3 Input/Output Signals and Block Diagrams ............................................................... 173
5.5.4 Truth Table of Device Operation.............................................................................. 174
5.5.5 Timing Charts........................................................................................................... 176
5.5.6 Electrical Characteristics.......................................................................................... 177
5.5.7 Power Consumption................................................................................................. 178
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EPSON
STANDARD CELL S1K70000 SERIES
EMBEDDED ARRAY S1X70000 SERIES