LH28F016LL datasheet(4/29 Pages) SHARP

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LH28F016LL

16M (1M × 16, 2M × 8) Flash Memory

PIN DESCRIPTION (Continued)

SYMBOL

TYPE

NAME AND FUNCTION

INPUT

WRITE PROTECT:

Erase blocks can be locked by writing a non-volatile lock-bit for

each block. When WP is low, those locked blocks as reflected by the Block-Lock Status

bits (BSR.6), are protected from inadvertent Data Writes or Erases. When WP is high,

all blocks can be Written or Erased regardless of the state of the lock-bits. The WP

input buffer is disabled when RP

» transitions low (deep power-down mode).

BYTE

INPUT

BYTE ENABLE:

BYTE low places device in x8 mode. All data is then input or output

on DQ

0 - DQ7, and DQ8 - DQ15 float. Address A0 selects between the high and low

byte. BYTE high places the device in x16 mode, and turns off the A

0 input buffer.

Address A

1, then becomes the lowest order address.

INPUT

INPUT FROM OUTSIDE INDUCTOR:

Input pin for outside inductor in DC/DC

converter circuit. Connect 1.8 (µH) inductor from V

CC.

INPUT

INPUT FROM OUTSIDE CAPACITOR:

Input pin for outside capacitor in DC/DC

converter circuit. Ground at 22000 (pF) capacitor.

SUPPLY

DEVICE POWER SUPPLY 3.0 V (2.7 V to 3.6 V)

: Do not leave any power pins floating.

GND

SUPPLY

GROUND FOR ALL INTERNAL CIRCUITRY:

Do not leave any ground pins floating.

NO CONNECT:

No internal connection to die, lead may be driven or left floating.

SSL

GROUND

LH28F016LL Datasheet(PDF) 4 Page - Sharp Corporation

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