Sharp LC-22LE250E-V Service Manual page 49

PERFORMANCE
• High Performance
-Fast access time: 20MHz serial clock (50pF + 1TTL Load)
-Fast program time: 5ms/page (typical, 128-byte per page)
-Fast erase time: 300ms/sector (typical, 8K-byte per sector)
• Low Power Consumption
-Low active read current: 10mA (typical) at 17MHz
-Low active programming current: 10mA (typical)
-Low active erase current: 10mA (typical)
-Low standby current: 30uA (typical, CMOS)
• Minimum 100,000 erase/program cycle
SOFTWARE FEATURES
• Input Data Format
-1-byte Command code, 3-byte address, 1-byte byte address
• 512-byte Sequential Read Operation
• Built in 9-bit (A0 to A8) pre-settable address counter to support the 512-byte sequential read
operation.
• Auto Erase and Auto Program Algorithm
-Automatically erases and verifies data at selected sector
Automatically programs and verifies data at selected page by an internal algorithm that
automatically times the program pulse widths (Any page to be programmed should have page in the
erased state first)
• Status Register Feature
-Provides detection of program and erase operation completion.
-Provides auto erase/ program error report
HARDWARE FEATURES
• SCLK Input
-Serial clock input
• SI Input
-Serial Data Input
• SO Output
-Serial Data Output
• PACKAGE
-28-pin SOP (330mil)
49
LC-22LE250
LC-24LE250