Sharp LC-19S7E-BK, Service Manual

Page: 51 / 193

2008-03-14
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
51
FEATURES
90 m Ω high-side MOSFET switch
500/1000 mA continuous current
Thermal and short-circuit protection with overcurrent logic output
Operating range from 2.7 V to 5.5 V
CMOS- and TTL-compatible enable inputs
Undervoltage lockout (UVLO)
12 μ A maximum standby supply current
Ambient temperature range, -40°C to 85°C
8 kV ESD protection
Reverse current protection
Fault-blanking
1.8. U1602,U1401,U1501 (IC AT24C02BN-SH-T 8-SOIC)
DESCRIPTION
The AT24C02B provides 2048 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as 256 words of 8
bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are
essential. The AT24C02B is available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra-Thin Mini-MAP (MLP 2x3), 5-lead SOT23,
8-lead TSSOP, and 8-ball dBGA2 packages and is accessed via a Two-wire serial interface. In addition, the AT24C02B is available in 1.8V (1.8V
to 5.5V) version.
FEATURES
Low-voltage and Standard-voltage Operation
–
1.8 (VCC = 1.8V to 5.5V)
Internally Organized 256 x 8 (2K)
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1 MHz (5V), 400 kHz (1.8V, 2.5V, 2.7V) Compatibility
Write Protect Pin for Hardware Data Protection
8-byte Page (2K) Write Modes
Partial Page Writes Allowed
Self-timed Write Cycle (5 ms max)
High-reliability
–
Endurance: 1 Million Write Cycles
–
Data Retention: 100 Years
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra-Thin Mini-MAP (MLP 2x3), 5-lead SOT23, 8-lead TSSOP and 8-ball dBGA2 Packages
Lead-free/Halogen-free
Available in Automotive
Die Sales: Wafer Form, Waffle Pack and Bumped Wafers
1.
9
. U4402 (W25X16AVSSIG SO-8 208mil)
DESCRIPTION
The W25X16A (16M-bit) Serial Flash memory provide a storage solution for systems with limited space, pins and power. The 25X series offers
flexibility and performance well beyond ordinary Serial Flash devices. They are ideal for code download applications as well as storing voice, text
and data. The devices operate on a single 2.7V to 3.6V power supply with current consumption as low as 5mA active and 1 μ A for power-down.
All devices are offered in space-saving packages.
The W25X16A array is organized into 8,192 programmable pages of 256-bytes each. Up to 256 bytes can be programmed at a time using the
Page Program instruction. Pages can be erased in groups of 16 (sector erase), groups of 256 (block erase) or the entire chip (chip erase). The
W25X16A has 512 erasable sectors and 32 erasable blocks. The small 4KB sectors allow for greater flexibility in applications that require data
and parameter storage. (See figure 2.)
The W25X16A supports the standard Serial Peripheral Interface (SPI), and a high performance dual output SPI using four pins: Serial Clock, Chip
Select, Serial Data I/O and Serial Data Out. SPI clock frequencies of up to 100MHz are supported allowing equivalent clock rates of 200MHz
when using the Fast Read Dual Output instruction. These transfer rates are comparable to those of 8 and 16-bit Parallel Flash memories.
A Hold pin, Write Protect pin and programmable write protect, with top or bottom array control features, provide further control flexibility.