Cypress Semiconductor enCoRe CY7C604XX Bedienungsanleitung PDF herunterladen (Seite 13)

CY7C603xx

Document #: 38-16018 Rev. *D Page 13 of 29

Electrical Specifications

This section presents the DC and AC electrical specifications

of the enCoRe III LV device. For the most up to date electrical

specifications, confirm that you have the most recent data

sheet by going to the web at http://www.cypress.com

Specifications are valid for 0°C d T

d 70°C and T

d 85°C as

specified, except where noted.

Refer to Table 17 for the electrical specifications on the

internal main oscillator (IMO) using SLIMO mode.

Figure 6. Voltage versus CPU Frequency

Figure 7. IMO Frequency Trim Options

The allowable CPU operating region for 12 MHz has been

extended down to 2.7V from the original 3.0V design target.

The customer's application is responsible for monitoring

voltage and throttling back CPU speed in accordance with

Figure 6 when voltage approaches 2.7V. Refer to Table 15 for

LVD specifications. Note that the device does not support a

preset trip at 2.7V. To detect Vdd drop at 2.7V, an external

circuit or device such as the WirelessUSB LP - CYRF6936

must be employed; or if the design permits, the nearest LVD

trip value at 2.9V can be used.

Tab le 5 lists the units of measure that are used in this section.

3.60

3.00

93 kHz 12 MHz

CPU Frequency

Vdd Voltage

2.40

3 MHz

Valid

Operating

Region

2.70

3.00 V

93 kHz 12 MHz 24 MHz

IMO Frequency

Vdd Voltage

3.60 V

6 MHz

2.40 V

SLIMO

Mode=1

SLIMO

Mode=1

SLIMO

Mode=1

SLIMO

Mode=0

Table 5. Units of Measure

Symbol Unit of Measure Symbol Unit of Measure

°C degree Celsius PW microwatts

dB decibels mA milliampere

fF femtofarad ms millisecond

Hz hertz mV millivolts

KB 1024 bytes nA nanoampere

Kbit 1024 bits ns nanosecond

kHz kilohertz nV nanovolts

k: kilohm W ohm

MHz megahertz pA picoampere

M: megaohm pF picofarad

PA microampere pp peak-to-peak

PF microfarad ppm parts per million

PH microhenry ps picosecond

Ps microsecond sps samples per second

PV microvolts s sigma: one standard deviation

PVrms microvolts root-mean-square V volts

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 28 29

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