S1K70000 Datasheet, PDF (99/379 Pages) Epson Company – STANDARD CELL / EMBEDDED ARRAY

Chapter 5 Memory Blocks
(3) For Low-Leakage type
1-port RAM “L3J XXX YY”
2-port RAM “L3K XXX YY” XXX denotes the number of words (hexadecimal)
and YY denotes the number of bits (hexadecimal).
Table 5-5 Relationship between Word/Bit Configurations of 1-port RAM (Low-Leakage)
and Cell Names
8 Bit
16 Bit
24 Bit
32 Bit
64 Word
L3J04008
L3J04010
L3J04018
L3J04020
128 Word
L3J08008
L3J08010
L3J08018
L3J08020
192 Word
L3J0C008
L3J0C010
L3J0C018
L3J0C020
256 Word
L3J10008
L3J10010
L3J10018
L3J10020
Table 5-6 Relationship between Word/Bit Configurations of 2-port RAM (Low-Leakage)
and Cell Names
8 Bit
16 Bit
24 Bit
32 Bit
64 Word
L3K04008
L3K04010
L3K04018
L3K04020
128 Word
L3K08008
L3K08010
L3K08018
L3K08020
192 Word
L3K0C008
L3K0C010
L3K0C018
L3K0C020
256 Word
L3K10008
L3K10010
L3K10018
L3K10020
5.1.3 RAM Sizes
To calculate the RAM sizes in the X and Y directions and the number of basic cells used,
use the respective equations shown below. Note that the equations shown below apply to
all types of transistors: Standard 1, High-Performance, and Low-Leakage.
(1) 1-port RAM
Size in X direction : RX = (number of words / 4) x 7 + 35
Size in Y direction
: RY = number of bits x 2 + 9 + α
Number of basic cells : RAMBCS = RX x RY
The factor α is 3 when 16 ≤ number of words ≤ 32, or 4 when 36 ≤ number of words ≤
256.
Table 5-7 Typical Configurations of 1-port RAM and Number of Basic Cells
8 Bit
16 Bit
24 Bit
32 Bit
64 Word
4263 (147 x 29)
6615 (147 x 45)
8967 (147 x 61)
11319 (147 x 77)
128 Word
7511 (259 x 29)
11655 (259 x 45)
15799 (259 x 61)
19943 (259 x 77)
192 Word
10759 (371 x 29)
16695 (371 x 45)
22631 (371 x 61)
28567 (371 x 77)
256 Word
14007 (483 x 29)
21735 (483 x 45)
29463 (483 x 61)
37191 (483 x 77)
STANDARD CELL S1K70000 SERIES
EPSON
91
EMBEDDED ARRAY S1X70000 SERIES