psd4235g2 STMicroelectronics, psd4235g2 Datasheet
psd4235g2
Manufacturer Part Number
psd4235g2
Description
Flash In-system Programmable Isp Peripherals For 16-bit Mcus 5v Supply
Manufacturer
STMicroelectronics
Datasheet
1.PSD4235G2.pdf
(129 pages)
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Features
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February 2009
Dual bank Flash memories
– 4 Mbit of Primary Flash memory (8 uniform
– 256 Kbit Secondary Flash memory with 4
– Concurrent operation: read from one
64 Kbit SRAM
PLD with macrocells
– Over 3000 gates of PLD: CPLD and DPLD
– CPLD with 16 output macrocells (OMCs)
– DPLD - user defined internal chip select
7 L/O ports with 52 I/O pins
– 52 individually configurable I/O port pins
– MCU I/Os
– PLD I/Os
– Latched MCU address output
– Special function l/Os
– l/O ports may be configured as open-drain
In-system programming (ISP) with JTAG
– Built-in JTAG compliant serial port allows
– Efficient manufacturing allow easy product
sectors, 32K x 16)
sectors
memory while erasing and writing the other
and 24 input macrocells (IMCs)
decoding
that can be used for the following functions:
outputs
full-chip In-System Programmability
testing and programmingUse low cost
FlashLINK cable with PC
Flash in-system programmable (ISP)
Rev 4
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Page register
– Internal page register that can be used to
– Programmable power management
– 100,000 Erase/write c ycles of Flash
– 1,000 Erase/WRITE Cycles of PLD
– 15 Year Data Retention
Single supply voltage
– 5V ±10%
Memory speed
– 70ns Flash memory and SRAM access
Packages are ECOPACK
High endurance
for 16-bit MCUs (5 V supply)
expand the microcontroller address space
by a factor of 256
memory
time
80-lead, Thin, Quad, Flat
LQFP80 (U)
PSD4235G2
®
www.st.com
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