U214 Hy29F800 - Cambridge Audio DVD53 Service Manual

IC BLOCK DIAGRAM & DESCRIPTION

8.3 U214 HY29F800

KEY FEATURES
n 5 Volt Read, Program, and Erase
– Minimizes system-level power requirements
n High Performance
– Access times as fast as 55 ns
n Low Power Consumption
– 20 mA typical active read current in byte
mode, 28 mA typical in word mode
– 35 mA typical program/erase current
– 5 µA maximum CMOS standby current
n Compatible with JEDEC Standards
– Package, pinout and command-set
compatible with the single-supply Flash
device standard
– Provides superior inadvertent write
protection
n Sector Erase Architecture
– Boot sector architecture with top and
bottom boot block options available
– One 16 Kbyte, two 8 Kbyte, one 32 Kbyte
and fifteen 64 Kbyte sectors in byte mode
– One 8 Kword, two 4 Kword, one 16 Kword
and fifteen 32 Kword sectors in word mode
– A command can erase any combination of
sectors
– Supports full chip erase
n Erase Suspend/Resume
– Temporarily suspends a sector erase
operation to allow data to be read from, or
programmed into, any sector not being
erased
n Sector Protection
n Temporary Sector Unprotect
n Internal Erase Algorithm
n Internal Programming Algorithm
n Fast Program and Erase Times
n Data# Polling and Toggle Status Bits
n Ready/Busy# Output (RY/BY#)
n Minimum 100,000 Program/Erase Cycles
n Space Efficient Packaging
19
A[18:0]
C E #
O E # DQ[15]/A-1
W E #
R E S E T #
B Y T E #
35
– Any combination of sectors may be
locked to prevent program or erase
operations within those sectors
– Allows changes in locked sectors
(requires high voltage on RESET# pin)
– Automatically erases a sector, any
combination of sectors, or the entire chip
– Automatically programs and verifies data
at a specified address
– Byte programming time: 7 µs typical
– Sector erase time: 1.0 sec typical
– Chip erase time: 19 sec typical
– Provide software confirmation of
completion of program or erase
operations
– Provides hardware confirmation of
completion of program and erase
operations
– Available in industry-standard 44-pin
PSOP and 48-pin TSOP and reverse
TSOP packages
8
DQ[7:0]
7
DQ[14:8]
RY/BY#