AMD-K6-2E Datasheet, PDF (278/332 Pages) Advanced Micro Devices – AMD-K6™-2E Embedded Processor

AMD-K6™-2E Processor Data Sheet
Preliminary Information
22529B/0—January 2000
14.5
Power Derating Based on Lower CPU Frequencies
This section provides standard- and low-power product
specification power derating based on lower CPU frequencies.
Note: The 166-MHz and 200-MHz data provided in Table 54 and
Table 55 was derived from the standard- and low-power
AMD-K6-2E/233AFR (and AMZ) and AMD-K6-2E/266AFR
(and AMZ) products and is solely for informational
purposes. The guaranteed electrical and thermal
specification data for the AMD-K6-2E/233AFR (and AMZ)
and AMD-K6-2E/266AFR (and AMZ) is also included here
for convenience. The derating data may be of interest to
customers who want to use AMD’s standard- or low-power
devices at lower CPU frequencies. AMD does not guarantee
the 166-MHz and 200-MHz CPU frequency derating data
and does not provide devices with these lower CPU
frequencies. Only devices listed in Table 73, “Valid Ordering
Part Number Combinations,” on page 306 are available.
Table 54. Power Derating Specification for Standard-Power Devices (AMD-K6-2E/233AFR and 266AFR)
Clock Control State
166.7 MHz¹ 200.0 MHz¹ 233.3 MHz¹
266.7 MHz¹
Maximum I_CC2 (core)
V_CC2 = 2.2 V ± 100 mV²
Maximum I_CC3 (I/O)
V_CC3 = 3.3 V +300 mV, –165 mV³
Thermal Power (Maximum)⁴
5.31 A
0.48 A
11.10 W
6.00 A
0.50 A
12.50 W
6.50 A
0.52 A
13.50 W
7.35 A
0.54 A
14.70 W
Thermal Power (Typical)⁵
Clock Multiple
BF[2:0] Inputs
6.65 W
2.5x
100b
7.50 W
3.0x
101b
8.10 W
3.5x
111b
8.85 W
4.0x
010b
Notes:
1. This specification applies to components using a clock and bus frequency of 66 MHz.
2. The maximum I_CC2 specification is taken at V_CC2 = 2.3 V. (The maximum power supply current must be taken into account when
designing a power supply.)
3. The maximum I_CC3 specification is taken at V_CC3 = 3.6 V. (The maximum power supply current must be taken into account when
designing a power supply.)
4. Maximum thermal power is determined for the worst-case instruction sequence or functions for the listed clock control states
with V_CC2 = 2.2 V and V_CC3 = 3.3 V.
5. Typical thermal power is determined for the typical instruction sequence or functions associated with normal system operation
with V_CC2 = 2.2 V and V_CC3 = 3.3 V.
260
Electrical Data
Chapter 14