TS68040 ATMEL Corporation, TS68040 Datasheet - Page 18

• Manufacturer Part Number: TS68040
• Description: 32-bit Mpu, 25-33 MHZ
• Manufacturer: ATMEL Corporation

18/38
Table 14 - Output AC timing specifications (Continued)
Num
Note 1 : Output timing is specified for a valid signal measured at the pin. Large buffer timing is specified driving a 50
Note 1 :
Note 1 :
Note 1 :
Note 1 :
Note 1 :
Note 1 :
Note 2 : All testing to be performed using worst-case test conditions unless otherwise specified.
Note 3 : The following pins are active low : AVEC, BG, BS, BR, CDIS, CIOUT, IPEND, IPLO, IPL1, IPL2, LOCK, LOCKE,
Note 2 :
Note 4 : Maximum operating junction temperature T J
Note 3 :
Note 3 :
Note 3 :
Note 5 : Timing specifications 11, 20 and 38 for address bus output timing apply when normal bus operation is selected.
Note 5 :
Note 6 : Timing specifications 18 and 19 for data bus output timing apply when normal bus operation is selected. Spe-
Note 3 :
43
48
50
BCLK to MI valid
BCLK to TA valid
BCLK to IPEND, PSTn, RSTO valid
transmission line with a length characterized by a 2.5 ns one-way propagation delay, terminated through 50
to 2.5 V. Large buffer output impedance is typically 3
nement. Small buffer timing is specified driving an unterminated 30
rized by a 2.5 ns one-way propagation delay. Small buffer output impedance is typically 30
back.
MDIS, MI, RST0, RSTI, TA , TBI, TCI, TEA, TIP, TRST, TS and W of R W.
device is not tested at T C
allowing the case and ambient temperatures to rise and fall as necessary so as not to exceed the maximum
junction temperature.
Specifications 26, 27 and 28 should be used when the multiplexed bus mode of operation is enabled.
cifications 28 and 29 should be used when the multiplexed bus mode of operation is enabled.
specifications include approximately 5 ns for the signal to propagate the lenght of the transmission line and
Characteristic
125°C. Testing is performed by setting the junction temperature T J
125°C. Minimum case operating temperature T C
Large buffer
Min.
9
9
9
Note 1
, resulting in incident wave switching for this environ-
Max.
21
21
21
25 MHz
Small buffer
Min.
9
9
9
Note 1
transmission line with a length characte-
Max.
30
30
30
Large buffer
Min.
6.50
6.50
6.50
Note 1
Max.
18
18
18
33 MHz
Small buffer
Min.
6.50
6.50
6.50
; the small buffer
Note 1
Max.
– 55°C. This
25
25
25
125°C and
Unit
ns
ns
ns