UPSD325X datasheet(149/176 Pages) STMICROELECTRONICS

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µPSD325X DEVICES

Note: 1. IPD (Power-down Mode) is measured with:

XTAL1=VSS; XTAL2=not connected; RESET=VCC; Port 0 =VCC; all other pins are disconnected. PLD not in Turbo Mode.

2. ICC_CPU (active mode) is measured with:

XTAL1 driven with tCLCH, tCHCL = 5ns, VIL = VSS+0.5V, VIH = Vcc – 0.5V, XTAL2 = not connected; RESET=VSS; Port 0=VCC; all

other pins are disconnected. ICC would be slightly higher if a crystal oscillator is used (approximately 1mA).

3. ICC_CPU (Idle Mode) is measured with:

XTAL1 driven with tCLCH, tCHCL = 5ns, VIL = VSS+0.5V, VIH = VCC– 0.5V, XTAL2 = not connected; Port 0 = VCC;

RESET=VCC; all other pins are disconnected.

4. PLD is in non-Turbo Mode and none of the inputs are switching.

5. See Figure 72 for the PLD current calculation.

6. I/O current = 0 mA, all I/O pins are disconnected.

ISTBY

SRAM (PSD) Stand-by Current

(VSTBY input)

VCC = 0V

0.5

µA

IIDLE

SRAM (PSD) Idle Current

(VSTBY input)

VCC > VSTBY

–0.1

0.1

µA

IRST

Reset Pin Pull-up Current

(RESET)

VIN = VSS

–10

–55

µA

IFR

XTAL Feedback Resistor

Current (XTAL1)

XTAL1 = VCC

XTAL2 = VSS

–20

–50

µA

ILI

Input Leakage Current

VSS < VIN < VCC

–1

µA

ILO

Output Leakage Current

0.45 < VOUT < VCC

–10

µA

IPD

Power-down Mode

VCC = 5.5V

LVD logic disabled

250

µA

LVD logic enabled

380

µA

ICC_CPU

2,3,6

Active (12MHz)

VCC = 5V

Idle (12MHz)

Active (24MHz)

VCC = 5V

Idle (24MHz)

Active (40MHz)

VCC = 5V

Idle (40MHz)

ICC_PSD

(DC)6

Operating

Supply Current

PLD Only

PLD_TURBO = Off,

f = 0MHz 7

µA/PT5

PLD_TURBO = On,

f = 0MHz

400

700

µA/PT

Flash

memory

During Flash memory

WRITE/Erase Only

Read-only, f = 0MHz

SRAM

f = 0MHz

ICC_PSD

(AC)6

PLD AC Base

note 5

Flash memory AC Adder

2.5

3.5

mA/

MHz

SRAM AC Adder

1.5

3.0

mA/

MHz

Symbol

Parameter

Test Condition

(in addition to those in

Table 109, page 146)

Min.

Typ.

Max.

Unit

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