ST72F344K4T6 STMicroelectronics, ST72F344K4T6 Datasheet - Page 31

• Manufacturer Part Number: ST72F344K4T6
• Description: MCU 8BIT 16KB FLASH MEM 32-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F344K4T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: ST72F3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST72F34X-SK/RAIS, ST7MDT40-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5611

ST72344xx ST72345xx
5
5.1
5.2
5.3
Data EEPROM
Introduction
The electrically erasable programmable read only memory can be used as a non-volatile
backup for storing data. Using the EEPROM requires a basic access protocol described in
this chapter.
Main features
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●
●
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Figure 7.
Memory access
The Data EEPROM memory read/write access modes are controlled by the E2LAT bit of the
EEPROM Control/Status register (EECSR). The flowchart in
different memory access modes.
EECSR
Up to 32 bytes programmed in the same cycle
EEPROM mono-voltage (charge pump)
Chained erase and programming cycles
Internal control of the global programming cycle duration
Wait mode management
Readout protection
EEPROM block diagram
0
ADDRESS BUS
0
DECODER
ADDRESS
0
0
Doc ID 12321 Rev 5
4
0
DECODER
0
ROW
4
4
E2LAT
E2PGM
128
MULTIPLEXER
DATA
Figure 8
(1 ROW = 32 x 8 BITS)
MEMORY MATRIX
HIGH VOLTAGE
DATA BUS
EEPROM
PUMP
describes these
DATA LATCHES
128
32 x 8 BITS
Data EEPROM
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