FT51A Advanced MCU with 8051 Compatible Core IC Datasheet
Version 1.5
Document No.: FT_000877
Clearance No.: FTDI#420
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
Voh
Vol
Output Voltage High
Output Voltage Low
2.8
V
V
0.2
0.8
Input low Switching
Threshold
Vil
V
V
Input High Switching
Threshold
Vih
2.0
Table 4-6 – USB DP/DM Pin Characteristics
4.3 MTP Memory Reliability Characteristics
The internal 16K Byte MTP memory has the following reliability characteristics:
Parameter
Data Retention
Write Cycle
Value
10
Unit
Years
Cycles
Cycles
2,000
Read Cycle
Unlimited
Table 4-7 – MTP Memory Characteristics
4.4 Internal Clock Characteristics
The internal Clock Oscillator has the following characteristics:
Value
Parameter
Unit
Minimum
Typical
Maximum
Frequency of Operation
(see Note 1)
47.98
45
48.00
50
48.02
55
MHz
%
Duty Cycle
Table 4-8 – Internal Clock Characteristics
Note 1: Equivalent to +/-1667ppm (USB upstream port is active)
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