UPD78F1502AGK-GAK-AX Datasheet, PDF (932/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 31 ELECTRICAL SPECIFICATIONS
(2) Serial interface: Serial array unit (15/18)
Caution Select the TTL input buffer for SIp and SCKp and the N-ch open drain output (VDD tolerance) mode for
SOp by using the PIMg and POMx registers.
Remarks 1.
2.
3.
4.
p: CSI number (p = 00, 01, 10, 20), g: PIM number (g = 1, 7), x: POM number (x = 1, 7, 8)
Rb[Ω]:Communication line (SOp) pull-up resistance,
Cb[F]: Communication line (SOp, SCKp) load capacitance, Vb[V]: Communication line voltage
fMCK: Serial array unit operation clock frequency
(Operation clock to be set by the CKSmn bit of the SMRmn register. m: Unit number (m = 0, 1),
n: Channel number (n = 0 to 2))
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 ≤ VDD = EVDD ≤ 5.5 V, 2.7 V ≤ Vb ≤ 4.0 V: VIH = 2.2 V, VIL = 0.8 V
2.7 V ≤ VDD = EVDD < 4.0 V, 2.3 V ≤ Vb < 2.7 V: VIH = 2.0 V, VIL = 0.5 V
R01UH0004EJ0501 Rev.5.01
916
Jun 20, 2011