Ampro Corporation 486E Byte-Wide Socket (S0)

Little Board™/486e Technical Manual
2–48
Byte-Wide Socket (S0)
The Little Board/486e CPU has a 32-pin onboard byte -wide memory so cke t desig nated S0. Th is
socket supports 32-pin DIP JEDEC pin out memory devices, including EPROM, FLASH EPROM,
SRAM, and nonvolatile RAM (NOVRAM) devices.
A memory device installed in the byte-wide socket can be u sed f or:
! Simple program storage
! BIOS extension
! Solid State Disk (SDD)
Table 2–35 shows representative byte-wide memory devices that can be installed in the byte-wide
socket. The table gives examples of generic part numbers, the size of the device (K bytes), and the
DIP package pin count. It also lists the SSD device type, used by the Ampro Solid State Disk (SSD)
Support Software to identify memory devices.
Table 2–35. Typical Byte-wide Devices
SSD Device
Type Size Package Pins Generic Part Number
EPROM
EPROM128 128K byte 32 27C010
EPROM256 256K byte 32 27C020
EPROM512 512K byte 32 27C040
EPROM1024 1024K byte 32 27C080
Flash EPROM
EPROM128 128K bytes 32 28F0 10
EPROM256 256K bytes 32 28F0 20
EPROM512 512K bytes 32 29F0 40
SRAM
SRAM128 128K bytes 32 62204
SRAM512 512K bytes 32 434000