PSD4235G2V-12UI STMicroelectronics, PSD4235G2V-12UI Datasheet - Page 46

• Manufacturer Part Number: PSD4235G2V-12UI
• Description: IC FLASH 4MBIT 120NS 80TQFP
• Manufacturer: STMicroelectronics

Specifications of PSD4235G2V-12UI

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 4M (512K x 8)
• Speed: 120ns
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Number Of Macrocells: 24
• Maximum Operating Frequency: 25.6 MHz
• Delay Time: 90 ns
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1970

Programming Flash memory
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Figure 6.
Data toggle flowchart
No
at Valid Even Address
READ DQ5 and DQ6
(DQ13 and DQ14)
Issue RESET
READ DQ6
Cycle failed
instruction
Program
or Erase
START
(DQ14)
(DQ13)
(DQ14)
Toggle
(DQ14)
Toggle
DQ6
DQ5
DQ6
= 1
=
=
Yes
Yes
Yes
No
No
complete
Program
or Erase
Cycle is
AI04921
PSD4235G2