Hyundai GMS90X54C, GMS90X51C DC Characteristics for GMS90C51C/52C/54C, Power supply current

GMS90X5XC Series HYUNDAI MicroElectronics

DC Characteristics

DC Characteristics for GMS90C51C/52C/54C

VCC= 5V + 10%, -15%; VSS=0V; TA= 0°C to 70°C

Parameter				Symbol	Limit Values		Unit	Test Conditions
					Min.	Max.
Input low voltage				VIL	-0.5	0.2VCC - 0.1	V	-
(except EA, RESET)
Input low voltage				VIL1	-0.5	0.2VCC - 0.3	V	-
	(EA)
Input low voltage (RESET)				VIL2	-0.5	0.2VCC + 0.1	V	-
Input high voltage (except				VIH	0.2VCC + 0.9	VCC + 0.5	V	-
XTAL1, EA, RESET)
Input high voltage to XTAL1				VIH1	0.7VCC	VCC + 0.5	V	-
Input high voltage to				VIH2	0.6VCC	VCC + 0.5	V	-
			EA,
RESET
Output low voltage				VOL	-	0.45	V	IOL= 1.6mA 1)
(ports 1, 2, 3)
Output low voltage				VOL1	-	0.45	V	IOL= 3.2mA 1)
(port 0, ALE, PSEN)
Output high voltage				VOH	2.4	-	V	IOH= -80μA
(ports 1, 2, 3)					0.9VCC			IOH= -10μA
Output high voltage				VOH1	2.4	-	V	IOH= -800μA 2)
(port 0 in external bus					0.9VCC			IOH= -80μA 2)
mode, ALE, PSEN)
Logic 0 input current				IIL	-10	-50	μA	VIN= 0.45V
(ports 1, 2, 3)
Logical 1-to-0 transition cur-				ITL	-65	-650	μA	VIN= 2.0V
rent (ports 1, 2, 3)
Input leakage current				ILI	-	±1	μA	0.45 < VIN < VCC
(port 0, EA)
Pin capacitance				CIO	-	10	pF	fC= 1MHz
								TA= 25°C
Power supply current:								VCC= 5V 4)
Active mode, 12MHz 3)				ICC	-	21	mA
Idle mode, 12MHz		3)		ICC	-	4.8	mA	V = 5V 5)
								CC
Active mode, 24 MHz 3)				ICC	-	36.2	mA	VCC= 5V 4)
Idle mode, 24MHz 3)				ICC	-	8.2	mA	VCC= 5V 5)
Active mode, 40 MHz 3)				ICC	-	58.5	mA	VCC= 5V 4)
								5)
Idle mode, 40 MHz 3)				ICC	-	12.5	mA	VCC= 5V 6)
Power Down Mode 3)				IPD	-	50	μ	VCC= 5V
							A

1)Capacitive loading on ports 0 and 2 may cause spurious noise pulses to be superimposed on the VOL of ALE and port 3.

The noise is due to external bus capacitance discharging into the port 0 and port 2 pins when these pins make 1-to-0 tran- sitions during bus operation. In the worst case (capacitive loading: > 50pF at 3.3V, > 100pF at 5V), the noise pulse on ALE

line may exceed 0.8V. In such cases it may be desirable to qualify ALE with a schmitt-trigger, or use an address latch with a schmitt-trigger strobe input.

Jan. 2001 Ver 1.0 25