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CY8C21634, CY8C21534
CY8C21434, CY8C21334, CY8C21234
Document Number: 38-12025 Rev. *O Page 26 of 45
AC Electrical Characteristics
AC Chip-Level Specifications
The following tables list the guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V
and -40°C ≤ T
A
≤ 85°C, 3.0V to 3.6V and -40°C ≤ T
A
≤ 85°C, or 2.4V to 3.0V and -40°C ≤ T
A
≤ 85°C, respectively. Typical parameters
apply to 5V, 3.3V, or 2.7V at 25°C and are for design guidance only.
Table 25. 5V and 3.3V AC Chip-Level Specifications
Symbol Description Min Typ Max Units Notes
F
IMO24
Internal Main Oscillator Frequency for 24 MHz 23.4 24 24.6
[12,13,14]
MHz Trimmed for 5V or 3.3V
operation using factory trim
values. See Figure 14 on
page 18. SLIMO mode = 0.
F
IMO6
Internal Main Oscillator Frequency for 6 MHz 5.75 6 6.35
[12,13,14]
MHz Trimmed for 5V or 3.3V
operation using factory trim
values. See Figure 14 on
page 18. SLIMO mode = 1.
F
CPU1
CPU Frequency (5V Nominal) 0.93 24 24.6
[12,13]
MHz 24 MHz only for SLIMO
mode = 0.
F
CPU2
CPU Frequency (3.3V Nominal) 0.93 12 12.3
[13,14]
MHz
F
BLK5
Digital PSoC Block Frequency
0
(5V Nominal) 0 48 49.2
[12,13,15]
MHz Refer to the AC Digital Block
Specifications.
F
BLK33
Digital PSoC Block Frequency (3.3V Nominal) 0 24 24.6
[13,15]
MHz
F
32K1
Internal Low Speed Oscillator Frequency 15 32 64 kHz
Jitter32k 32 kHz RMS Period Jitter – 100 200 ns
Jitter32k 32 kHz Peak-to-Peak Period Jitter – 1400 –
T
XRST
External Reset Pulse Width 10 – – μs
DC24M 24 MHz Duty Cycle 40 50 60 %
Step24M 24 MHz Trim Step Size – 50 – kHz
Fout48M 48 MHz Output Frequency 46.8 48.0 49.2
[12,14]
MHz Trimmed. Using factory trim
values.
Jitter24M1 24 MHz Peak-to-Peak Period Jitter (IMO) – 600 ps
F
MAX
Maximum frequency of signal on row input or
row output.
– – 12.3 MHz
T
RAMP
Supply Ramp Time 0 – – μs
Notes
12.4.75V < Vdd < 5.25V.
13.Accuracy derived from Internal Main Oscillator with appropriate trim for Vdd range.
14.3.0V < Vdd < 3.6V. See Application Note AN2012 “Adjusting PSoC Microcontroller Trims for Dual Voltage-Range Operation” for information on trimming for
operation at 3.3V.
15.See the individual user module data sheets for information on maximum frequencies for user modules.
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