LHF00L29 Sharp Microelectronics, LHF00L29 Datasheet - Page 7

• Manufacturer Part Number: LHF00L29
• Description: IC FLASH 16MBIT 70NS 48TSOP
• Manufacturer: Sharp Microelectronics

Specifications of LHF00L29

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 16M (1M x 16)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 425-1886

DQ
WP#/ACC
RY/BY#
Symbol
A
RST#
GND
WE#
CE#
OE#
V
19
15
NC
CC
-A
-DQ
0
0
OPEN DRAIN
OUTPUT
OUTPUT
SUPPLY
SUPPLY
SUPPLY
INPUT/
INPUT/
INPUT
INPUT
INPUT
INPUT
INPUT
Type
ADDRESS INPUTS: Inputs for addresses.
DATA INPUTS/OUTPUTS: Inputs data and commands during CUI (Command User
Interface) write cycles, outputs data during memory array, status register, query code,
identifier code reads. Data pins float to high-impedance (High Z) when the chip or
outputs are deselected. Data is internally latched during an erase or program cycle.
CHIP ENABLE: Activates the device’s control logic, input buffers, decoders and sense
amplifiers. CE#-high (V
standby levels.
RESET: When low (V
which provides data protection. RST#-high (V
power-up or reset mode, the device is automatically set to read array mode. RST# must
be low during power-up/down.
OUTPUT ENABLE: Gates the device’s outputs during a read cycle.
WRITE ENABLE: Controls writes to the CUI and array blocks. Addresses and data are
latched on the rising edge of CE# or WE# (whichever goes high first).
WRITE PROTECT: When WP#/ACC is V
Erase or program operation can be executed to the blocks which are not locked and not
locked-down. When WP#/ACC is V
Applying 12.0V±0.3V to WP#/ACC provides fast erasing or fast programming mode. In
this mode, WP#/ACC is power supply pin. Applying 12.0V±0.3V to WP#/ACC during
erase/program can only be done for a maximum of 1,000 cycles on each block. WP#/
ACC may be connected to 12.0V±0.3V for a total of 80 hours maximum. Use of this pin
at 12.0V+0.3V beyond these limits may reduce block cycling capability or cause
permanent damage.
READY/BUSY#: Indicates the status of the internal WSM (Write State Machine). When
low, WSM is performing an internal operation (block erase, full chip erase, program or
OTP program). RY/BY#-High Z indicates that the WSM is ready for new commands,
block erase is suspended and program is inactive, program is suspended, or the device is
in reset mode.
DEVICE POWER SUPPLY (2.7V-3.6V): With V
flash memory are inhibited. Device operations at invalid V
Characteristics) produce spurious results and should not be attempted.
GROUND: Do not float any ground pins.
NO CONNECT: Lead is not internally connected; it may be driven or floated.
Table 1. Pin Descriptions
LHF00L29
IL
), RST# resets internal automation and inhibits write operations
IH
) deselects the device and reduces power consumption to
Name and Function
IH
, lock-down is disabled.
IL
, locked-down blocks cannot be unlocked.
IH
CC
) enables normal operation. After
≤V
LKO
, all write attempts to the
CC
voltage (see DC
Rev. 2.45
4