MMCCMB2107 Freescale, MMCCMB2107 Datasheet - Page 213

• Manufacturer Part Number: MMCCMB2107
• Manufacturer: Freescale

Specifications of MMCCMB2107

• Lead Free Status / RoHS Status: Not Compliant

9.8.4.4 Program Pulse-Width and Amplitude Modulation
9.8.4.5 Overprogramming
MMC2107 – Rev. 2.0
MOTOROLA
NOTE:
To prevent bits from possibly becoming depleted (over programmed),
the first programming pulses should be of reduced duration and with
reduced drain voltage. Refer to
steps to insure FLASH reliability.
The values of PAWS[2:0] and NVR should be updated on the
appropriate pulse to change the programming voltage and CLKPM
should be updated to adjust the pulse width.
Programming a bit without a program margin read after each program
pulse or exceeding the specified program times or voltages results in an
overprogrammed state. Once a bit is overprogrammed, data in the array
block that is located in the same column is lost as the overprogrammed
bit causes the entire column to appear programmed. To restore an array
block with an overprogrammed bit, the block must be erased and
reprogrammed.
GDB = 1 for all programming operations.
Margin reads are required after every pulse.
Voltage Step
Freescale Semiconductor, Inc.
For More Information On This Product,
–2 V
–3 V
–4 V
–5 V
–6 V
–7 V
–8 V
–9 V
–9 V
Non-Volatile Memory FLASH (CMFR)
Table 9-9. Required Programming Algorithm
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PAWS[2:0]
1 0 0
1 0 1
1 1 0
1 1 1
1 0 0
1 0 1
1 1 0
1 1 1
1 1 1
NVR
Table 9-9
1
1
1
1
0
0
0
0
0
Pulse Width
Non-Volatile Memory FLASH (CMFR)
250 s
250 s
250 s
250 s
100 s
50 s
50 s
50 s
50 s
for the required programming
Functional Description
Number of Pulses
Any additional
Technical Data
20
20
20
20
4
4
4
4
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