RL78 datasheet(77/100 Pages) RENESAS

77 / 100 page

RL78/G14

2. ELECTRICAL SPECIFICATIONS

R01DS0053EJ0100 Rev. 1.00

Page 77 of 97

Feb 21, 2012

Caution

The pins mounted depend on the product. Refer to 1.3.1 30-pin products to 1.3.10 100-pin products.

Note 1.

The value must also be 4/fCLK or more.

Caution 1. Select the TTL input buffer for the SIp pin and the N-ch open drain output (EVDD0 tolerance) mode for the SOp pin

and SCKp pin by using port input mode register g (PIMg) and port output mode register g (POMg).

Caution 2. Use it with EVDD0

 Vb.

Remark 1. Rb[

]: Communication line (SCKp, SOp) pull-up resistance, Cb[F]: Communication line (SCKp, SOp) load capacitance,

Vb[V]: Communication line voltage

Remark 2.

p: CSI number (p = 00, 01, 10, 20, 30, 31), m: Unit number (m = 0, 1), n: Channel number (n = 0 to 3),

g: PIM and POM number (g = 0, 1, 3 to 5, 14)

Remark 3.

VIH and VIL below are observation points for the AC characteristics of the serial array unit when communicating at

different potentials in CSI mode.

4.0 V

 EVDD0  5.5 V, 2.7 V  Vb  4.0 V: VIH = 2.2 V, VIL = 0.8 V

2.7 V

 EVDD0 < 4.0 V, 2.3 V  Vb  2.7 V: VIH = 2.0 V, VIL = 0.5 V

1.8 V

 EVDD0 < 3.3 V, 1.6 V  Vb  2.0 V: VIH = 1.50 V, VIL = 0.32 V

Remark 4.

4. CSI01 of 48-, 52-, 64-pin products, and CSI11 and CSI21 cannot communicate at different potential. Use other CSI for

communication at different potential.

(8)

Communication at different potential (2.5 V, 3 V) (fMCK/4) (CSI mode) (master mode, SCKp... internal clock output)

(TA = -40 to +85

C, 1.8 V  EVDD0 = EVDD1  VDD  5.5 V, VSS = EVSS0 = EVSS1 = 0 V)

(1/2)

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Unit

SCKp cycle time

tKCY1

4.0 V

 EVDD0  5.5 V, 2.7 V  Vb  4.0 V,

Cb = 30 pF, Rb = 1.4 k



300 Note

2.7 V

 EVDD0 < 4.0 V, 2.3 V  Vb  2.7 V,

Cb = 30 pF, Rb = 2.7 k



500 Note

1.8 V

 EVDD0 < 3.3 V, 1.6 V  Vb  2.0 V,

Cb = 30 pF, Rb = 5.5 k



1150 Note

SCKp high-level width

tKH1

4.0 V

 EVDD0  5.5 V, 2.7 V  Vb  4.0 V,

Cb = 30 pF, Rb = 1.4 k



tKCY1/2 - 75

2.7 V

 EVDD0 < 4.0 V, 2.3 V  Vb  2.7 V,

Cb = 30 pF, Rb = 2.7 k



tKCY1/2 - 170

1.8 V

 EVDD0 < 3.3 V, 1.6 V  Vb  2.0 V,

Cb = 30 pF, Rb = 5.5 k



tKCY1/2 - 458

SCKp low-level width

tKL1

4.0 V

 EVDD0  5.5 V, 2.7 V  Vb  4.0 V,

Cb = 30 pF, Rb = 1.4 k



tKCY1/2 - 12

2.7 V

 EVDD0 < 4.0 V, 2.3 V  Vb  2.7 V,

Cb = 30 pF, Rb = 2.7 k



tKCY1/2 - 18

1.8 V

 EVDD0 < 3.3 V, 1.6 V  Vb  2.0 V,

Cb = 30 pF, Rb = 5.5 k



tKCY1/2 - 50

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