TMP86FS28DFG datasheet(264/272 Pages) TOSHIBA

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Page 252

20. Electrical Characteristics

20.3 DC Characteristics

TMP86FS28DFG

20.3 DC Characteristics

Note 1: Typical values show those at Topr = 25

°C, VDD = 5 V

Note 2: Input current (IIN1, IIN2); The current through pull-up or pull-down resistor is not included.

Note 3: IDD does not include IREF current.

Note 4: The supply currents of SLOW 2 and SLEEP 2 modes are equivalent to IDLE 0, 1, 2.

Note 5: When a program is executing in the flash memory or when data is being read from the flash memory, the flash memory

operates in an intermittent manner, causing peak currents in the operation current, as shown in Figure 20-1.

In this case, the supply current IDD (in NORMAL1, NORMAL2 and SLOW1 modes) is defined as the sum of the average

peak current and MCU current.

Note 6: When designing the power supply, make sure that peak currents can be supplied. In SLOW1 mode, the difference

between the peak current and the average current becomes large.

Figure 20-1 Intermittent Operation of Flash Memory

(VSS = 0 V, Topr = −40 to 85°C)

Parameter

Symbol

Pins

Condition

Min

Typ.

Max

Unit

Hysteresis voltage

VHS

Hysteresis input

–

0.9

–

Input current

IIN1

TEST

VDD = 5.5 V, VIN = 5.5 V/0 V

––

±2

µA

IIN2

Sink open drain, Tri-state

IIN3

RESET

, STOP

Input resistance

RIN2

RESET

pull-up

VDD = 5.5 V, VIN = 0 V

100

220

450

Ω

Output leakage current

ILO

Sink open drain, Tri-state

VDD = 5.5 V, VOUT = 5.5 V/0 V

––

±2

µA

Output high voltage

VOH

C-MOS, Tri-st port

VDD = 4.5 V, IOH = −0.7 mA

4.1

–

Output low voltage

VOL

Except XOUT

VDD = 4.5 V, IOL = 1.6 mA

––

0.4

LCD output voltage

use LCD driver’s

booste

V2-3OUT

V2 terminal

≥ VDD

Reference supply terminal :V1

SEG/COM terminal no load

–V1 x 2

–

V3 terminal

–V1 x 3

–

Supply current in

NORMAL 1, 2 mode

IDD

VDD = 5.5 V

VIN = 5.3/0.2 V

fc = 16 MHz

fs = 32.768 kHz

When a program

operates on flash

memory (Note5,6)

–

15.5

16.5

Supply current in

IDLE 0, 1, 2 mode

–6

8.3

Supply current in

SLOW 1 mode

VDD = 3.0 V

VIN = 2.8/0.2 V

fs = 32.768 kHz

LCD drive is not

enable.

When a program

operates on flash

memory (Note5,6)

–25

260

µA

When a program

operates on RAM

–20

Supply current in

SLEEP 1 mode

–9

Supply current in

SLEEP 0 mode

–8

Supply current in

STOP mode

VDD = 5.5 V

VIN = 5.3 V/0.2 V

–0.5

Program coutner (PC)

n+1

n+2

n+3

1 machine cycle (4/fc or 4/fs)

MCU current

[mA]

DDP-P

Typ. current

Momentary flash current

Max. current

Sum of average

momentary flash current

and MCU current

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