User manual

CY8C21634/CY8C21534
CY8C21434/CY8C21334/CY8C21234
Document Number: 38-12025 Rev. *R Page 28 of 46
Figure 16. 24 MHz Period Jitter (IMO) Timing Diagram
Table 24. 2.7V AC Chip-Level Specifications
Symbol Description Min Typ Max Units Notes
F
IMO12
Internal Main Oscillator Frequency for 12 MHz 11.5 12
0
12.7
[16,17,18]
MHz Trimmed for 2.7V
operation using factory
trim values. See Figure
14 on page 18. SLIMO
mode = 1.
F
IMO6
Internal Main Oscillator Frequency for 6 MHz 5.5 6 6.5
[16,17,18]
MHz Trimmed for 2.7V
operation using factory
trim values. See Figure
14 on page 18. SLIMO
mode = 1.
F
CPU1
CPU Frequency (2.7V Nominal) 0.093 3 3.15
[16,17]
MHz 24 MHz only for SLIMO
mode = 0.
F
BLK27
Digital PSoC Block Frequency (2.7V Nominal) 0 12 12.5
[16,17,18]
MHz Refer to AC Digital Block
Specifications on page
31.
F
32K1
Internal Low Speed Oscillator Frequency 8 32 96 kHz
F
32K_U
Internal Low Speed Oscillator (ILO) Untrimmed
Frequency
5 – – kHz After a reset and before
the m8c starts to run, the
ILO is not trimmed. See
the System Resets
section of the PSoC
Technical Reference
Manual for details on
timing this
Jitter32k 32 kHz RMS Period Jitter – 150 200 ns
Jitter32k 32 kHz Peak-to-Peak Period Jitter – 1400 –
T
XRST
External Reset Pulse Width 10 – – μs
DC
ILO
Internal Low Speed Oscillator Duty Cycle 20 50 80 %
F
MAX
Maximum frequency of signal on row input or
row output.
– – 12.3 MHz
SR
POWER_UP
Power Supply Slew Rate – – 250 V/ms Vdd slew rate during
power up.
T
POWERUP
Time from end of POR to CPU executing code – 16 100 ms Power up from 0V. See
the System Resets
section of the PSoC
Technical Reference
Manual.
Jitter24M1
F
24M
[+] Feedback